Ratios and Proportions

Front

What is a Ratio?

Back

A comparison of two quantities.

Front

Write a ratio in simplest form: 10 automobiles to 13 bikes

Back

10/13

Front

Solve: 7/n = 14/10

Back

5

Front

Solve: 11/13 = n/39

Back

33

Front

What is the ratio of red apples to green apples if there are 4 red apples and 3 green apples?

Back

4 red apples to 3 green apples.

Front

What is a Proportion?

Back

An equation that states two ratios are equal.

Front

If 3/4 = x/20, what is x?

Back

15

Front

What is the simplest form of the ratio 8:12?

Back

2:3

Front

If a recipe calls for 2 cups of flour for every 3 cups of sugar, what is the ratio of flour to sugar?

Back

2:3

Front

How do you find a missing value in a proportion?

Back

Cross-multiply and solve for the unknown.