Ratios and equivalent ratios

Front

What is a ratio?

Back

A ratio is a comparison of two quantities.

Front

Find one equivalent ratio for 5 : 8.

Back

15:24

Front

What is the ratio of green marbles to yellow marbles if there are 3 green and 1 yellow?

Back

3 to 1

Front

Are the ratios 4:3 and 7:3 equivalent?

Back

No

Front

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

Back

4 to 3

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

If the ratio of boys to girls in a class is 2:3, what is the equivalent ratio if there are 4 boys?

Back

6 girls (the ratio is 4:6).

Front

How do you find equivalent ratios?

Back

You can find equivalent ratios by multiplying or dividing both terms of the ratio by the same number.

Front

What is the ratio of 10 to 15 in simplest form?

Back

2 to 3.

Front

If a recipe calls for a ratio of 1:4 for sugar to flour, how much sugar is needed for 2 cups of flour?

Back

0.5 cups of sugar.