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 an equivalent ratio?

Back

To find an equivalent ratio, you can multiply or divide both terms of the ratio by the same non-zero number. For example, to find an equivalent ratio of 3:4, you can multiply both terms by 2 to get 6:8.

Front

What is the ratio of 6 red dots to 3 green dots?

Back

The ratio of red dots to green dots is 6:3, which can be simplified to 2:1.

Front

If the ratio of boys to girls in a class is 5:3, how many girls are there if there are 25 boys?

Back

If the ratio is 5:3, then for every 5 boys, there are 3 girls. If there are 25 boys, then there are (25/5) * 3 = 15 girls.

Front

What number should go in the blank to make the ratios equivalent? 3 : 8 __ : 48

Back

18

Front

Which ratio is equivalent to 5 to 4?

Back

25 to 20

Front

What is the ratio of green dots to orange dots if there are 3 green dots and 5 orange dots?

Back

The ratio of green dots to orange dots is 3:5.

Front

Which ratio is equivalent to 12:20?

Back

3:5

Front

What number should go in the blank to make the ratios equivalent? 7 : 2 21 : ___

Back

6

Front

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

Back

The ratio of flour to sugar is 2:3.