Subtracting, Multiplying and Dividing Rational Numbers

Front

What are rational numbers?

Back

Rational numbers are numbers that can be expressed as the quotient or fraction of two integers, where the denominator is not zero.

Front

What is the rule for multiplying two rational numbers with the same sign?

Back

When multiplying two rational numbers with the same sign, the product is positive.

Front

What is the rule for multiplying two rational numbers with different signs?

Back

When multiplying two rational numbers with different signs, the product is negative.

Front

How do you divide rational numbers?

Back

To divide rational numbers, multiply the first number by the reciprocal of the second number.

Front

What is the rule for dividing two rational numbers with the same sign?

Back

When dividing two rational numbers with the same sign, the quotient is positive.

Front

What is the rule for dividing two rational numbers with different signs?

Back

When dividing two rational numbers with different signs, the quotient is negative.

Front

How do you find the product of a rational number and an integer?

Back

To find the product of a rational number and an integer, multiply the integer by the numerator of the rational number and keep the same denominator.

Front

What is the process to convert a fraction to a decimal?

Back

To convert a fraction to a decimal, divide the numerator by the denominator.

Front

How do you simplify a rational number?

Back

To simplify a rational number, divide both the numerator and the denominator by their greatest common divisor (GCD).

Front

What is the importance of the greatest common divisor (GCD) in rational numbers?

Back

The GCD is used to simplify fractions and to find equivalent fractions.