Dividing Whole Numbers by 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 divide a whole number by a unit fraction?

Back

To divide a whole number by a unit fraction, multiply the whole number by the reciprocal of the unit fraction.

Front

What is the reciprocal of 1/4?

Back

The reciprocal of 1/4 is 4/1, or simply 4.

Front

If you have 3 feet of wood and cut it into pieces that are 1/4 foot long, how many pieces do you have?

Back

12 pieces.

Front

What does the expression 6 ÷ 1/4 represent?

Back

It represents how many 1/4 foot pieces can be made from 6 feet, which equals 24.

Front

If Jemma has 5 cups of batter and uses 1/3 cup for each pancake, how many pancakes can she make?

Back

15 pancakes.

Front

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

Back

The result is greater than the whole number.

Front

How can you visualize dividing by a fraction?

Back

You can visualize it by thinking of how many times the fraction fits into the whole number.

Front

What is the formula for dividing a whole number by a fraction?

Back

Whole number ÷ (Numerator/Denominator) = Whole number × (Denominator/Numerator).

Front

If a pet store has 9 cats and 1/4 of a bag of food, how much food does each cat get?

Back

Each cat gets 1/36 of a bag of food.