3.2 Practice: Divide Unit Fractions & Whole Numbers

Front

What is a unit fraction?

Back

A unit fraction is a fraction where the numerator is 1 and the denominator is a whole number, such as 1/2, 1/3, or 1/5.

Front

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

Back

To divide a whole number by a unit fraction, multiply the whole number by the denominator of the fraction. For example, 6 ÷ 1/3 is the same as 6 × 3 = 18.

Front

What is the result of dividing a unit fraction by a whole number?

Back

When you divide a unit fraction by a whole number, you multiply the denominator of the fraction by that whole number. For example, 1/3 ÷ 2 = 1/(3×2) = 1/6.

Front

If you have 1/5 gallon of juice and divide it among 2 friends, how much does each friend get?

Back

Each friend gets 1/10 gallon of juice.

Front

What is 7 divided by 1/3?

Back

7 divided by 1/3 equals 21.

Front

What does the expression 5 ÷ 1/2 represent?

Back

The expression 5 ÷ 1/2 means how many halves are in 5, which equals 10.

Front

If Shelby has a ribbon that is 6 feet long and cuts it into pieces that are 1/3 foot long, how many pieces does she have?

Back

Shelby has 18 pieces of ribbon.

Front

How many days will 9 whole boxes of French fries last if the shop uses 1/2 box per day?

Back

9 whole boxes will last 18 days.

Front

What is the formula to divide a whole number by a fraction?

Back

The formula is: Whole Number ÷ Fraction = Whole Number × (Reciprocal of the Fraction).

Front

What is the reciprocal of a fraction?

Back

The reciprocal of a fraction is obtained by flipping the numerator and denominator. For example, the reciprocal of 1/3 is 3/1.