Ratios & Equivalent Ratios

Front

What is a ratio?

Back

A ratio is a comparison of two quantities, showing how many times one value contains or is contained within the other.

Front

How do you write a ratio?

Back

Ratios can be written in three ways: using a colon (e.g., 3:4), as a fraction (e.g., 3/4), or with the word 'to' (e.g., 3 to 4).

Front

What does equivalent ratios mean?

Back

Equivalent ratios are ratios that express 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, how many girls are there if there are 10 boys?

Back

There are 15 girls.

Front

What is the first step to solve a ratio problem?

Back

Identify the quantities being compared and write the ratio.

Front

If 30 kids like grape juice and the ratio of grape to pineapple juice drinkers is 3:4, how many kids like pineapple juice?

Back

40 kids like pineapple juice.

Front

What is the missing value in the ratio table if the ratio of A to B is 2:5 and A is 8?

Back

The missing value for B is 20.

Front

Which of the following best describes equivalent ratios?

Back

Equivalent ratios are ratios that have the same value when simplified.

Front

In a recipe, if the ratio of sugar to flour is 1:4, how much sugar is needed for 2 cups of flour?

Back

0.5 cups of sugar is needed.

Front

If the ratio of red to blue marbles is 3:2 and there are 12 red marbles, how many blue marbles are there?

Back

There are 8 blue marbles.