Writing Ratios

Front

What is a ratio?

Back

A ratio is a comparison of two quantities that shows the relative size of one quantity to another.

Front

How do you write a ratio?

Back

Ratios can be written in three ways: using a colon (e.g., 3:2), as a fraction (e.g., 3/2), or with the word 'to' (e.g., 3 to 2).

Front

What does it mean if a ratio is 4:3?

Back

It means for every 4 units of the first quantity, there are 3 units of the second quantity.

Front

If there are 4 red apples and 3 green apples, what is the ratio of red apples to green apples?

Back

4 red apples to 3 green apples.

Front

How do you simplify the ratio 16:20?

Back

Divide both numbers by their greatest common divisor, which is 4. The simplified ratio is 4:5.

Front

What is the ratio of pink stripes to green stripes if there are 16 pink and 20 green?

Back

The ratio is 16 to 20.

Front

If the ratio of girls to boys is 3:1, how many boys are there if there are 9 girls?

Back

There are 3 boys.

Front

What does a ratio of 2:6 represent?

Back

It represents that for every 2 of one quantity, there are 6 of another quantity.

Front

In a ratio of 4:1, how many total parts are there?

Back

There are 5 total parts (4 + 1).

Front

If the ratio of legs to heads is 4:1, how many heads are there if there are 12 legs?

Back

There are 3 heads.