Equivalent Ratios

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. For example, 1:2 and 2:4 are equivalent ratios.

Front

How do you find equivalent ratios?

Back

To find equivalent ratios, you can multiply or divide both terms of the ratio by the same non-zero number. For example, for the ratio 2:3, multiplying both terms by 2 gives 4:6, which is equivalent.

Front

What is the ratio of girls to boys if there are 6 girls and 21 boys?

Back

The ratio of girls to boys is 6:21.

Front

If a recipe calls for 4 cups of sugar for every 5 cups of flour, what is the ratio of sugar to flour?

Back

The ratio of sugar to flour is 4:5.

Front

What can you say about the ratios 3:6 and 1:2?

Back

The ratios 3:6 and 1:2 are equivalent ratios because they represent the same relationship.

Front

If 36 to 21 is equivalent to _____ to 7, what is the missing number?

Back

The missing number is 12.

Front

Which ratio is equivalent to 12:20?

Back

The ratio equivalent to 12:20 is 3:5.

Front

What is the first step to simplify a ratio?

Back

The first step to simplify a ratio is to find the greatest common factor (GCF) of both terms and divide both terms by that number.

Front

If a car travels 60 miles in 1 hour, what is the ratio of miles to hours?

Back

The ratio of miles to hours is 60:1.

Front

How can you express the ratio 8:12 in simplest form?

Back

The simplest form of the ratio 8:12 is 2:3.