Multiplying & Dividing Rational Numbers

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 multiply two rational numbers?

Back

To multiply two rational numbers, multiply their numerators together and their denominators together. Then simplify if possible.

Front

What is the result of multiplying 2/3 by 3/4?

Back

The result is 1/2.

Front

How do you divide two rational numbers?

Back

To divide two rational numbers, multiply the first number by the reciprocal of the second number.

Front

What is the reciprocal of 3/5?

Back

The reciprocal of 3/5 is 5/3.

Front

If you divide 8.4 pounds of almonds into 30 bags, how many pounds are in each bag?

Back

0.28 pounds.

Front

What is the cost per book if 27 books cost $67.50?

Back

$2.50 per book.

Front

If Frank paid $3.36 for tomatoes at $0.84 per pound, how many pounds did he buy?

Back

4 pounds.

Front

What is the product of 10/6 and 3/2?

Back

The product is 5.

Front

If Valerie cuts a 9 ft ribbon into pieces of 2/3 ft, how many pieces can she cut?

Back

She can cut 13 pieces.