# What does ratio mean in math?

## What does ratio mean in math?

A ratio is an ordered pair of numbers a and b, written a / b where b does not equal 0. A proportion is an equation in which two ratios are set equal to each other. For example, if there is 1 boy and 3 girls you could write the ratio as: 1 : 3 (for every one boy there are 3 girls)

## What does a 3 to 1 ratio mean?

A ratio of 3:1 means that there are 4 parts altogether. The fractions from the ratio can therefore be deduced as. 34and14. These represent the percentages: 75%:25%

## How do you work out ratios?

To calculate the ratio of an amount we divide the amount by the total number of parts in the ratio and then multiply this answer by the original ratio. We want to work out \$20 shared in the ratio of 1:3. Step 1 is to work out the total number of parts in the ratio. 1 + 3 = 4, so the ratio 1:3 contains 4 parts in total.

## How do you work out the ratio in simplest form?

0:483:18What is the Simplest Form of a Ratio? | Don’t Memorise – YouTubeYouTube