Multiply and Divide 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 negative rational numbers?

Back

When you multiply two negative rational numbers, the result is a positive rational number.

Front

What is the product of -⅘ and -⅙?

Back

2/15

Front

How do you multiply a negative rational number by a negative rational number?

Back

The product is positive.

Front

What is the product of -1/4 and -4/3?

Back

1/3

Front

How do you divide a negative rational number by a positive rational number?

Back

The result is a negative rational number.

Front

What is -0.6 divided by 3/4?

Back

-0.8

Front

How do you find the total growth of a plant that grows 1/4 cm every day for 21 days?

Back

Multiply the daily growth by the number of days: 1/4 cm x 21 = 5 1/4 cm.

Front

What is the total cost per person if 12 friends pay $83.40 equally?

Back

Each person pays $6.95.

Front

What is the rule for dividing fractions?

Back

To divide fractions, multiply by the reciprocal of the divisor.