Multiplying and Dividing Whole Numbers with Unit Fractions

Front

What is a unit fraction?

Back

A unit fraction is a fraction where the numerator is 1 and the denominator is a positive integer, such as 1/2, 1/3, or 1/4.

Front

How do you multiply a whole number by a unit fraction?

Back

To multiply a whole number by a unit fraction, multiply the whole number by the numerator and then divide by the denominator. For example, 6 x 1/4 = 6 x 1 ÷ 4 = 1.5.

Front

What does dividing by a fraction mean?

Back

Dividing by a fraction is the same as multiplying by its reciprocal. For example, dividing by 1/4 is the same as multiplying by 4.

Front

What is the result of 3 ÷ 1/4?

Back

The result is 12, because 3 ÷ 1/4 = 3 x 4/1 = 12.

Front

How do you convert an improper fraction to a mixed number?

Back

To convert an improper fraction to a mixed number, divide the numerator by the denominator. The quotient is the whole number, and the remainder is the new numerator.

Front

What is the mixed number form of 6/5?

Back

The mixed number form of 6/5 is 1 1/5.

Front

How many batches of pancakes can Ed make with 6 cups of flour if each batch requires 1/2 cup?

Back

Ed can make 12 batches of pancakes, because 6 ÷ 1/2 = 6 x 2/1 = 12.

Front

What is 5 x 2/3?

Back

5 x 2/3 = 10/3, which can be expressed as the mixed number 3 1/3.

Front

If there is 1/3 of a pan of brownies left, how much will each of the four children get?

Back

Each child will get 1/12 of the whole pan of brownies, because 1/3 ÷ 4 = 1/12.

Front

What is the formula for multiplying fractions?

Back

To multiply fractions, multiply the numerators together and the denominators together. For example, (a/b) x (c/d) = (a*c)/(b*d).