If there is one prayer that you should pray/sing every day and every hour, it is the LORD's prayer (Our FATHER in Heaven prayer)
It is the most powerful prayer. A pure heart, a clean mind, and a clear conscience is necessary for it.
- Samuel Dominic Chukwuemeka

For in GOD we live, and move, and have our being. - Acts 17:28

The Joy of a Teacher is the Success of his Students. - Samuel Dominic Chukwuemeka

Home Fractions Decimals Percents TI-84 Graphing Calculator Other Calculators

Fractions, Decimals, and Percents Calculators

Samuel Dominic Chukwuemeka
I greet you this day,

NOTE:
(1.) Please solve the questions on your own before checking your answers with the calculators.
(2.) Please do not use a comma.
(3.) You may need to refresh your Internet browser after each calculations (especially for the Calculators for Percents).


I wrote the codes for some of the calculators using JavaScript, a client-side scripting language.
I used AJAX (Asynchronous JavaScript) library for the rest of the calculators.
Please use the latest/updated Internet browsers. The calculators should work.
Comments, ideas, areas of improvement, questions, and constructive criticisms are welcome.
If you are my student, please do not contact me here. Contact me via the school's system.
Thank you for visiting.

Samuel Dominic Chukwuemeka (Samdom For Peace) B.Eng., A.A.T, M.Ed., M.S

Calculators for Fractions





Top




Calculators for Decimals

Solve Decimals

  • Using the Decimals Calculator
  • All outputs/answers are in integers or decimals.
  • When you input fractions, please type only proper fractions or improper fractions.
  • For mixed numbers, please put the "plus" sign between the integer and the proper fraction.
  • Example: $2\dfrac{3}{4}$ should be typed as 2+3/4.
  • Convert a fraction to a decimal: Just type the fraction and click the "Calculate" button
  • Example: $\dfrac{1}{4}$ (written as 1/4) should give 0.25
  • Add, Subtract, Multiply fractions, integers, and decimals
  • It follows the order of operations
  • Example: $3 + \dfrac{5}{9} - 0.7 * \dfrac{2}{5}$ (written as 3 + 5/9 - 0.7 * 2/5) should give $3.2755555555555556$
  • Divide fractions, integers, and decimals
  • Use parenthesis appropriately
  • Example: $\dfrac{(2 + 3)}{4}$ written as ((2 + 3) / 4) should give $1.25$.
  • Example: $\dfrac{3}{5} \div \dfrac{5}{3}$ (written as (3/5) / (5/3)) should give $0.36$
  • Example: $3 \div 0.3$ (written as 3 / 0.3) should give $10$
  • Example: $\dfrac{3}{5} \div 0.3$ (written as (3/5) / 0.3) should give $2$
  • Add, Subtract, Multiply, and Divide fractions, integers, and decimals
  • Use parenthesis appropriately for the division
  • Example: $-\dfrac{5}{12} + \left(\dfrac{3}{5} \div \dfrac{7}{10}\right)$ written as (-5/12) + ((3/5) / (7/10)) should give $0.4404761904761905$
  • Example: $\dfrac{3}{4} * 4(2 + 7) \div -\dfrac{1}{2} * -\dfrac{1}{3}$ written as (3/4) - 4*(2 + 7) / (-1/2)*(-1/3) should give $-23.25$

=

Round Decimals

  • Using the Rounding Decimals Calculator
  • All inputs should be in decimals (positive or negative decimals). No integers or fractions please.
  • If you want to round integers, please use the "Rounding Integers" calculator.
  • The calculator has options for the: decimal value (one value at a time), the rounding value, and the rounding type.
  • The decimal value and the rounding type is required.
  • The rounding type could be: decimal places, ceiling (least integer function), flooring (greatest integer function), fix (just the integer function), significant digits (significant figures), scientific notation (exponential notation), and engineering notation.
  • Rounding values are needed for the rounding types: decimal places and significant digits.
  • However, if you select decimal places as the rounding type; but did not specify the number of decimal places (rounding value), then, the calculator will round the decimal value to the nearest integer.
  • The calculator will also round the decimal value to the nearest integer if you specify "0" as the rounding value.
  • Example: 5.73 to "blank" decimal places should give $6$
  • Example: 5.73 to 0 decimal places should give $6$
  • Example: -5.73 to 0 decimal places should give $-6$
  • Example: 5.43 to "blank" decimal places should give $5$
  • Example: 5.43 to 0 decimal places should give $5$
  • Example: -5.43 to 0 decimal places should give $-5$
  • However, if you select significant digits as the rounding type; but did not specify the number of significant digits (rounding value), then, the calculator will just return the decimal value you entered.
  • The calculator will also return the decimal value you entered if you specify "0" as the rounding value.
  • Example: 5.73 to "blank" significant digits should give $5.73$
  • Example: -5.43 to "blank" significant digits should give $-5.43$
  • Example: 5.43 to 0 significant digits should give $5.43$
  • Example: -5.73 to 0 significant digits should give $-5.73$
  • No rounding values are needed for the rounding types: ceiling, flooring, fix, scientific notation, and engineering notation.. Just input the decimal value and select the appropriate rounding type.
  • Example: 5.73 to "blank" ceiling (ceil) should give $6$
  • Example: -5.73 to "blank" ceiling (ceil) should give $-5$
  • Example: 5.73 to "blank" flooring (floor) should give $5$
  • Example: -5.73 to "blank" flooring (floor) should give $-6$
  • Example: 5.73 to "blank" fix should give $5$
  • Example: -5.73 to "blank" fix should give $-5$
  • Example: 573 to "blank" scientific notation should give $5.73 * {10^2}$
  • The calculator outputs it as $5.73e+2$
  • Just know that $5.73e+2$ is the same as $5.73 * {10^2}$

Round to =





Top




Calculators for Percents

Percent-Proportion (Percent-Equation) Problems

The placeholders (textboxes with words) are readonly...they are where the answers should be.
The other textboxes (that do not have placeholders) are required. Please type your values in those textboxes and click the "Calculate" button.
All answers are integers or decimals for the first three calculators.
If the answer is a decimal and you need to convert it to a fraction, use the Fractions Calculator
For the fourth calculator (convert a percent to a fraction and a decimal), the answer is a simplified fraction and a decimal.

$?$




$\%$ $?$

$\%$ $?$




$\%$

$=$

$=$

Sales/Business/Retail/Wholesale/Markup/Discount/Coupon/Profit/Loss

  • Given: initial price, percent sales tax
    To Find: sales tax amount, selling price
  • $\%$

  • Given: initial price, percent markup or discount
    To Find: markup or discount amount, selling price
  • is $\%$

  • Given: selling price, percent sales tax
    To Find: initial price, sales tax amount
  • $\%$

  • Given: selling price, percent markup or discount
    To Find: initial price, markup or discount amount
  • is $\%$

  • Given: initial price, selling price
    To Find: sales tax, sales tax amount
  • Given: initial price, selling price
    To Find: markup/discount, amount of markup/discount
  • Given: initial price, percent markup or discount, percent sales tax
    To Find: markup or discount amount, intermediate price, sales tax amount, selling price
  • is $\%$

    $\%$

  • Given: selling price, percent markup or discount, percent sales tax
    To Find: initial price, markup or discount amount, intermediate price, sales tax amount
  • is $\%$

    $\%$

  • Given: initial price, percent markup or discount, selling price

    To Find: markup or discount amount, intermediate price, percent sales tax, sales tax amount
  • is $\%$

  • Given: initial price, first percent markup or discount, second percent markup or discount
    To Find: first markup or discount amount, intermediate price, second markup or discount amount, selling price
  • is $\%$

    is $\%$

  • Given: initial price, first percent markup or discount, second percent markup or discount, percent sales tax
    To Find: first markup or discount amount, first intermediate price, second markup or discount amount, second intermediate price, sales tax amount, selling price
  • is $\%$

    is $\%$

    $\%$

Being Developed

Still in development
Please check back later





Top




TI-84 Graphing Calculator

Make a Table of Values, Graph and Trace Functions Using the TI-84 Calculator

To use the calculator, please:
(1.) Visit the link: TI-84 Calculator
(2.) Click "The Basics" folder.
(3.) Click the link of "whatever you want to do".
(4.) Follow the directions as illustrated by the "blinking light".