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Adding Fractions Calculator

Enter every measurement Adding Fractions Calculator asks for, then press Calculate. The result stays blank while you are still typing.

Press Calculate after the entries are in.

What Adding Fractions is for

Adding Fractions Calculator is the page to open when you need adding fractions from measurements you already have. It belongs with the other math calculators because that is the work this arithmetic supports. The same fraction in a general fraction problem is the fraction math. Type the entries first. The result stays hidden until you press Calculate, so a half-finished form never flashes a number you might mistake for the answer.

How to fill in this calculator

  1. Whole number. Enter the value this part of the job needs.
  2. Numerator. Enter the value this part of the job needs.
  3. Denominator. Enter the value this part of the job needs.
  4. Operation. Enter the value this part of the job needs. The choices include add, subtract, multiply, divide.
  5. Whole number. Enter the value this part of the job needs.
  6. Numerator. Enter the value this part of the job needs.
  7. Denominator. Enter the value this part of the job needs.

The formula in plain language

To add fractions, convert them to a common denominator, add the numerators, and reduce. A mixed number is a whole plus a fraction. Multiply the whole by the denominator and add the numerator before you do arithmetic. A ratio a:b = c:d solves for the missing term by cross-multiplying. Long division splits a number into a whole quotient and a remainder.

A worked example

1/2 plus 1/3 is 5/6. The mixed number 2 1/4 is 9/4. If 2:3 equals 8:d, then d is 12. 100 divided by 6 is 16 with a remainder of 4, or 16.666....

Adding, reducing, and converting a fraction are the same number in another form. This adding fractions result should match mixed numbers and comparing fractions.

Mistakes that move the answer

  • A denominator of zero is not a fraction.
  • Reduce the answer if you are comparing it with a tape that is marked in sixteenths.

How to check the result

After Calculate shows the adding fractions result, redo the last operation with a pencil using the rounded figures on the screen. Matching that check means the inputs were read correctly. If you edit a label or a sentence in this HTML file, reload the page. The form and this article both live in the file, so the edit is what visitors will read.