Real-Life Challenges: Multiplying Rational Numbers

A recipe calls for 2/3 cup of sugar. If you want to make 1.5 times the recipe, how much sugar do you need?

• 3/4 cup

• 1/2 cup

• 2 cups

• 1 cup

A car travels 3/4 of a mile every minute. How far does it travel in 2.5 minutes?

• 2.0 miles

• 2.25 miles

• 1.5 miles

• 1.875 miles

A gardener plants 1/2 of a garden bed with tomatoes. If the bed is 4/5 of a square yard, how much area is planted with tomatoes?

• 2/5 square yards

• 1/2 square yards

• 1/4 square yards

• 3/5 square yards

A runner completes 2/5 of a mile in 1/4 of an hour. What is the runner's speed in miles per hour?

• 1.6 miles per hour

• 1.2 miles per hour

• 0.8 miles per hour

• 2.0 miles per hour

A painter uses 3/8 of a gallon of paint for one wall. How much paint will he need for 4 walls of the same size?

• 2 gallons

• 2.5 gallons

• 1.5 gallons

• 1 gallon

A recipe requires 1/2 teaspoon of salt for each serving. If you are making 3.5 servings, how much salt do you need?

• 2 teaspoons

• 3 teaspoons

• 1.75 teaspoons

• 1 teaspoon

A cyclist rides 5/6 of a mile in 1/3 of an hour. What is the cyclist's speed in miles per hour?

• 3 miles per hour

• 1.5 miles per hour

• 2.5 miles per hour

• 4 miles per hour

A box can hold 2/3 of a cubic foot of items. If you have 4 boxes, what is the total volume they can hold?

• 3 cubic feet

• 4 cubic feet

• 2.67 cubic feet

• 1.5 cubic feet

A student reads 1/4 of a book each day. How much of the book will the student have read after 6 days?

• 1.5

• 1/2

• 3/4

• 2