Dividing 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 denominator of the unit fraction.

Front

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

Back

The result is a greater whole number.

Front

If you have 1/5 of a pound of cornflakes and divide it into 2 equal jars, how much is in each jar?

Back

1/10 of a pound.

Front

If you have 1/3 of a bag of sugar and want to know how many days it will last if 2 bags are used each day, what is the answer?

Back

1/6 of a day.

Front

What is 1/6 of a mile divided among 3 friends?

Back

Each friend will run 1/18 of a mile.

Front

What does it mean to divide fractions?

Back

Dividing fractions involves multiplying by the reciprocal of the divisor.

Front

How do you find the weight of each jar if you have 1/5 of a pound of cornflakes?

Back

Divide 1/5 by 2 to get 1/10.

Front

If a carpenter needs 1/2 of a box of caulk for 4 cupboards, how much does he need for 1 cupboard?

Back

1/8 of a box.

Front

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

Back

Multiply the fraction by the reciprocal of the whole number.