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Fraction calculator

Add, take away, multiply and divide fractions and mixed numbers, with every step and a picture of the answer. Free, with no account or uploads.

Add, take away, multiply or divide fractions

Type two fractions, mixed numbers such as 1 1/2 or decimals. Every step is shown, down to the simplest form.

Do
+−×÷

Write 3/4, a mixed number as 1 1/2, or a decimal. Leave the second empty to simplify the first.

The answer

3/4 + 5/6 = 1 7/12

19/12 as a fraction, 1.58(3) as a decimal

3/4
5/6
1 7/12

How it is worked out

  1. Find a common bottom: the smallest number both 4 and 6 go into is 12.\frac{3}{4} = \frac{9}{12},\quad \frac{5}{6} = \frac{10}{12}
  2. Add the tops and keep the bottom.\frac{9}{12} + \frac{10}{12} = \frac{19}{12}
  3. As a mixed number: 1 whole and 7/12 left over.\frac{19}{12} = 1\frac{7}{12}
How it works and help
Every fraction is kept exact, step by step, on your device. Nothing you type is sent anywhere.

A little help along the way

Follow these steps. Everything is worked out exactly in your browser; nothing is sent anywhere.

  1. Say what you want to doWork with fractions is the usual. The others simplify a ratio, find x or share out a total, turn decimals and fractions into each other, and work with picture sizes.
  2. Type the numbersFractions as 3/4, mixed numbers as 1 1/2, ratios with colons as 12 : 18, and repeating decimals with brackets as 0.1(6).
  3. Read the answer and every stepThe answer is drawn as a textbook would, with each step under it.

Questions people ask

How do I type a mixed number?
Write the whole number, a space and the fraction: 1 1/2 is one and a half. You can also type ½, a decimal such as 0.75, or a negative such as −2 1/3.
Does it show the steps?
Yes: the common bottom it finds, how the tops are added or multiplied, how a fraction is turned upside down to divide, and how the answer is simplified and written as a mixed number.
Can it simplify one fraction?
Yes. Leave the second box empty and the first is simplified, with the number that divides the top and the bottom said.

This page is the Fraction and ratio calculator, opened for this one job; every other tool it has is one press away. Each of its settings is explained on the Fraction and ratio calculator's own page.

Read the step-by-step guide

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