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 of two integers, where the denominator is not zero.

Front

How do you divide two fractions?

Back

To divide two fractions, multiply the first fraction by the reciprocal of the second fraction.

Front

What is the reciprocal of a fraction?

Back

The reciprocal of a fraction is obtained by flipping the numerator and denominator.

Front

Back

Front

Back

Front

How do you multiply fractions?

Back

To multiply fractions, multiply the numerators together and the denominators together.

Front

What is the least common denominator (LCD)?

Back

The least common denominator is the smallest multiple that is common to the denominators of two or more fractions.

Front

Back

Front

What is the formula to find the total cost when buying multiple items?

Back

Total Cost = Price per Item × Quantity.

Front

If a fruit costs $2.50 per pound, how much do you pay for 3 pounds?

Back

You pay $7.50.