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, often expressed as 'a to b' or a:b.

Front

How do you write a ratio?

Back

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

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 shop makes 13 glazed donuts for every 7 chocolate donuts, what is the ratio of chocolate to glazed donuts?

Back

The ratio of chocolate to glazed donuts is 7:13.

Front

What does it mean if a ratio is simplified?

Back

A simplified ratio means that the numbers in the ratio have been reduced to their smallest whole number form.

Front

What is the ratio of oranges to fruit if there are 2 oranges and 6 fruits?

Back

The ratio of oranges to fruit is 2:6.

Front

If there are 3 green marbles and 1 red marble, what is the ratio of green marbles to red marbles?

Back

The ratio of green marbles to red marbles is 3:1.

Front

How do you find the total number of parts in a ratio?

Back

To find the total number of parts in a ratio, add the numbers in the ratio together.

Front

What is the ratio of blue A's to red A's if there are 10 blue A's and 5 red A's?

Back

The ratio of blue A's to red A's is 10:5.

Front

What is a part-to-part ratio?

Back

A part-to-part ratio compares different parts of a whole, such as the ratio of boys to girls in a class.