Ratios and equivalent ratios

Front

What is a ratio?

Back

A ratio is a comparison of two quantities.

Front

What is an equivalent ratio?

Back

An equivalent ratio is a ratio that expresses the same relationship between two quantities, even if the numbers are different.

Front

Find one equivalent ratio for 4:8.

Back

2:4.

Front

If the ratio of boys to girls in a class is 2:3, how many boys are there if there are 15 girls?

Back

10 boys.

Front

What is the ratio of 10 to 5?

Back

2 to 1.

Front

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

Back

2 to 3.

Front

How do you simplify the ratio 12:16?

Back

Divide both numbers by 4 to get 3:4.

Front

What is the ratio of red apples to green apples if there are 8 red apples and 4 green apples?

Back

2 to 1.

Front

If there are 20 students in a class and the ratio of boys to girls is 1:4, how many boys are there?

Back

4 boys.

Front

What is the ratio of 15:30 in simplest form?

Back

1:2.