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 rational numbers?

Back

To multiply two rational numbers, multiply their numerators together and their denominators together. For example, (a/b) x (c/d) = (a*c)/(b*d).

Front

What is the result of multiplying a positive rational number by a negative rational number?

Back

The result is a negative rational number.

Front

What is the result of multiplying two negative rational numbers?

Back

The result is a positive rational number.

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. For example, (a/b) ÷ (c/d) = (a/b) x (d/c).

Front

What is the decimal equivalent of 1/2?

Back

0.5

Front

What is the decimal equivalent of 3/4?

Back

0.75

Front

Is 1/3 a terminating or repeating decimal?

Back

Repeating decimal.

Front

What is the decimal equivalent of 5/8?

Back

0.625

Front

What is the decimal equivalent of -2/5?

Back

-0.4