Multiplying and Dividing Rational Numbers

Front

What do you do when multiplying fractions?

Back

Multiply the numerators (top numbers) together and the denominators (bottom numbers) together.

Front

If Frank weighs 225 pounds on Earth, how much would he weigh on Mars where gravity is 0.38 of Earth's?

Back

Frank would weigh 85.5 pounds on Mars.

Front

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

Back

The result is a negative number.

Front

What is the sign of the product of two numbers with opposite signs?

Back

The product is negative.

Front

If peaches cost $2.50 per pound and Tim buys 3 pounds, how much does she spend?

Back

Tim spends $7.50.

Front

What is the rule for multiplying two negative numbers?

Back

The product of two negative numbers is positive.

Front

What is the rule for dividing two negative numbers?

Back

The quotient of two negative numbers is positive.

Front

What happens when you multiply a positive number by a negative number?

Back

The product is negative.

Front

What is the least common denominator (LCD) used for?

Back

The LCD is used to add or subtract fractions with different denominators.

Front

How do you convert a fraction to a decimal?

Back

Divide the numerator by the denominator.