6.3E Multiplying and Dividing Fractions and decimals

Front

What is the area of a rectangle?

Back

Area = length × width.

Front

If a rectangular mirror has an area of 11 11/16 square feet and a width of 2 3/4 feet, how do you find the height?

Back

Height = Area ÷ Width.

Front

What is the area of a sheet of printer paper that is 8.5 inches by 11 inches?

Back

Area = 8.5 inches × 11 inches = 93.5 square inches.

Front

How do you calculate the cost of a trip based on distance and cost per mile?

Back

Cost = Distance × Cost per mile.

Front

If Joshua pays $2.25 per mile and travels 8.7 miles, how much does he pay?

Back

Cost = 8.7 miles × $2.25/mile = $19.58.

Front

How many parfaits can be made with 1/2 cup of yogurt if each parfait requires 1/8 cup?

Back

Number of parfaits = (1/2) ÷ (1/8) = 4.

Front

What is the cost to ship 1 ounce if a package weighing 5.5 ounces costs $2.53 to ship?

Back

Cost per ounce = $2.53 ÷ 5.5 ounces = $0.46.

Front

What is a fraction?

Back

A fraction represents a part of a whole, expressed as a/b where 'a' is the numerator and 'b' is the denominator.

Front

What does it mean to multiply fractions?

Back

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

Front

What is the result of multiplying 1/2 by 1/3?

Back

1/2 × 1/3 = 1/6.