Writing Ratios - Practice #1

Front

What is a ratio?

Back

A ratio is a comparison of two quantities that shows the relative size of one quantity to another, often expressed in the form 'a:b'.

Front

How do you write a ratio in simplest form?

Back

To write a ratio in simplest form, divide both terms of the ratio by their greatest common divisor (GCD).

Front

What does the ratio 2:3 mean?

Back

The ratio 2:3 means that for every 2 of the first quantity, there are 3 of the second quantity.

Front

If the ratio of boys to girls is 13:10, how many boys are there if there are 10 girls?

Back

If the ratio is 13:10, then for every 10 girls, there are 13 boys. If there are 10 girls, there are 13 boys.

Front

What is an equivalent ratio?

Back

An equivalent ratio is a ratio that expresses the same relationship between quantities, even if the numbers are different, such as 2:3 and 4:6.

Front

How do you find an equivalent ratio?

Back

To find an equivalent ratio, multiply or divide both terms of the ratio by the same non-zero number.

Front

Write the ratio of 3 to 9 in simplest form.

Back

The simplest form of the ratio 3:9 is 1:3.

Front

What is the ratio of dogs to all pets if there are 2 dogs, 4 cats, and 5 hamsters?

Back

The ratio of dogs to all pets is 2:11.

Front

If a ratio is expressed as 9:12, what is its simplest form?

Back

The simplest form of the ratio 9:12 is 3:4.

Front

How can you express the ratio of 2:3 in words?

Back

You can express the ratio 2:3 as 'for every 2 of the first quantity, there are 3 of the second quantity'.