Rational Numbers Check Point 2.3

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 add two rational numbers with different denominators?

Back

To add two rational numbers with different denominators, find a common denominator, convert each fraction, and then add the numerators.

Front

What is the process to subtract rational numbers?

Back

To subtract rational numbers, find a common denominator, convert the fractions, and then subtract the numerators.

Front

How do you multiply two rational numbers?

Back

To multiply two rational numbers, multiply the numerators together and the denominators together.

Front

What is the rule for dividing rational numbers?

Back

To divide rational numbers, multiply by the reciprocal of the divisor.

Front

If 12 whole pizzas are eaten and each person eats ¼ pizza, how many people eat pizza?

Back

48 people.

Front

What expression finds the number of 3/8-foot pieces in a 21-foot rope?

Back

21 ÷ 3/8.

Front

How many 0.25 pound hamburgers can be made from 2.5 pounds of ground beef?

Back

10 hamburgers.

Front

What is the cost of driving 42 miles at $0.07 per mile?

Back

$2.94.

Front

If $700 is deducted each month for a mortgage, how much is deducted after six months?

Back

$-4,200.