Multiplying and Dividing Rational Numbers

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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

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What is the rule for multiplying a negative rational number by a positive rational number?

Back

The product of a negative rational number and a positive rational number is negative.

Front

How do you divide two rational numbers?

Back

Front

What happens when you divide a rational number by zero?

Back

Dividing a rational number by zero is undefined.

Front

Calculate the cost of 3 3/5 lbs of bananas at $0.35 per pound.

Back

Tanya paid $1.26.

Front

Calculate the cost of 2 1/2 lbs of chicken at $3.30 per pound.

Back

The cost is $8.25.

Front

If the temperature drops at a rate of 2½ degrees for 4¼ hours, how much did it drop?

Back

The temperature dropped -10 and 5/8 degrees.

Front

What is the product of -2.14 and 5.8?

Back

The product is -12.412.

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