Multiplying and 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 \( \frac{a}{b} \), where \( a \) is an integer and \( b \) is a non-zero integer.

Front

What happens to the sign of the product when multiplying two negative numbers?

Back

The product of two negative numbers is positive.

Front

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

Back

The result is a negative number.

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 the rule for dividing two negative numbers?

Back

The quotient of two negative numbers is positive.

Front

How do you convert a mixed number to an improper fraction?

Back

Multiply the whole number by the denominator, add the numerator, and place the result over the original denominator.

Front

Calculate: -3/4 ÷ 2/3

Back

To divide by a fraction, multiply by its reciprocal: \( -3/4 \times 3/2 = -9/8 \) or -1 1/8.

Front

What is the product of -2.5 and 4?

Back

The product is -10.

Front

Calculate: -1/2 × -3/4

Back

The product is 3/8.

Front

What is the result of dividing -6 by -2?

Back

The result is 3.