Add, subtract, multiply, or divide mixed numbers and fractions. Type values like 2 3/4 and pick an operation.
Usage Tip
A space separates the whole part from the fraction: write two and three-quarters as 2 3/4, not 2-3/4.
Result shown as a mixed number, fraction, and decimal
The answer is reduced to lowest terms.
Negative values are supported with a leading minus.
Denominators cannot be zero.
Mixed numbers combine a whole number and a fraction, such as 2 3/4, which means two and three quarters. To work with them, convert each to an improper fraction by multiplying the whole number by the denominator and adding the numerator, so 2 3/4 becomes 11/4. Then apply the operation and convert the result back to a mixed number.
Adding and subtracting need a common denominator, while multiplying simply multiplies the tops and the bottoms, and dividing flips the second fraction and multiplies. Results are reduced to lowest terms. Mixed numbers are common in woodworking, sewing, and cooking, where measurements such as 1 1/2 inches or 2 1/4 cups are used constantly.