Multiplying and Dividing Rational Numbers Word Problems

Front

What is a rational number?

Back

A rational number is any number that can be expressed as the quotient or fraction of two integers, where the denominator is not zero.

Front

How do you divide a fraction by a whole number?

Back

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

Front

What is the process to multiply a fraction by a whole number?

Back

To multiply a fraction by a whole number, multiply the numerator of the fraction by the whole number and keep the denominator the same.

Front

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

Back

Multiply the whole number by the denominator, add the numerator, and place that result over the original denominator.

Front

What is the formula for dividing fractions?

Back

To divide fractions, multiply the first fraction by the reciprocal of the second fraction.

Front

If you have 3/4 of a pizza and share it among 5 friends, how much does each friend get?

Back

Each friend gets 3/4 ÷ 5 = 3/20 of a pizza.

Front

If 2/3 of a cake is divided among 4 people, how much does each person get?

Back

Each person gets 2/3 ÷ 4 = 1/6 of a cake.

Front

How much flour is needed for 4 batches if a recipe calls for 2/3 cup?

Back

You need 2/3 x 4 = 2 2/3 cups of flour.

Front

If 2/3 of a bag of marbles is shared among 6 children, how many marbles does each child get?

Back

Each child gets (2/3 of 36) ÷ 6 = 4 marbles.

Front

How do you multiply two fractions?

Back

To multiply two fractions, multiply the numerators together and the denominators together.