How to use it
- Type the numerator (top) and denominator (bottom) of each fraction; use the small box for the whole part of a mixed number.
- Choose the operation: +, −, × or ÷.
- Read the simplified result and follow the steps to see how it was done.
Questions and answers
How do you add fractions with different denominators?
Find the least common denominator, rewrite both fractions with it, then add the numerators. For 1/2 + 3/4 the common denominator is 4: 2/4 + 3/4 = 5/4, which is 1 1/4 as a mixed number.
How do you divide fractions?
Keep the first fraction, flip the second one (its reciprocal) and multiply: 1/2 ÷ 3/4 = 1/2 × 4/3 = 4/6 = 2/3.
How do I enter a mixed number or a negative fraction?
For 2 1/3, type 2 in the small box and 1 over 3. For a negative value, put the minus sign in the whole part (−2 1/3) or, when there is no whole part, on the numerator (−1/3).