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 determine if two ratios are equivalent?

Back

Two ratios are equivalent if you can simplify them to the same fraction or if you can cross-multiply and get the same product.

Front

What is the simplified form of the ratio 20:25?

Back

The simplified form of the ratio 20:25 is 4:5.

Front

If a recipe calls for a ratio of 2:3 of sugar to flour, how much sugar is needed for 9 cups of flour?

Back

6 cups of sugar are needed, as the ratio 2:3 means for every 2 parts of sugar, there are 3 parts of flour.

Front

What is the ratio of girls to boys in a class with 6 girls and 21 boys?

Back

The ratio of girls to boys is 2:7.

Front

If a wire is cut in the ratio 9:6, what is the total length of the wire if one piece is 36 inches?

Back

The total length of the wire is 60 inches.

Front

Which of the following ratios is NOT equivalent to 20:24? 10:12, 5:6, 15:18, 16:20

Back

16:20 is NOT equivalent to 20:24.

Front

What is the ratio of Holstein cows to Jersey cows if there are 28 Holsteins and 20 Jerseys?

Back

The ratio of Holstein cows to Jersey cows is 7:5.

Front

How do you simplify the ratio 30:45?

Back

The simplified form of the ratio 30:45 is 2:3.

Front

If there are 12 apples and 18 oranges, what is the ratio of apples to oranges?

Back

The ratio of apples to oranges is 2:3.