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 fractions?

Back

To multiply two fractions, multiply the numerators together and the denominators together. For example, (a/b) × (c/d) = (a*c)/(b*d).

Front

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

Back

The result is a negative number.

Front

What is the result of multiplying two negative numbers?

Back

The result is a positive number.

Front

How do you divide fractions?

Back

To divide fractions, multiply by the reciprocal of the divisor. For example, (a/b) ÷ (c/d) = (a/b) × (d/c).

Front

What is the first step in dividing rational numbers?

Back

The first step is to multiply by the reciprocal of the second number.

Front

What is the simplified form of 27/36?

Back

The simplified form of 27/36 is 3/4.

Front

What is the product of (-5)(-6)(7.5)?

Back

The product is 225.

Front

What is (-8) raised to the power of 3?

Back

(-8)³ = -512.

Front

What is the product of 23.4 and -0.7?

Back

The product is -16.38.