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), using the word 'to' (e.g., 3 to 2), or as a fraction (e.g., 3/2).

Front

What does it mean for two ratios to be equivalent?

Back

Two ratios are equivalent if they represent the same relationship between quantities, even if the numbers are different.

Front

If the ratio of red apples to green apples is 4:3, how many red apples are there if there are 12 green apples?

Back

There are 16 red apples.

Front

What is the ratio of chocolate chips to flour in a recipe that calls for 2 cups of chocolate chips and 3 cups of flour?

Back

The ratio is 2:3.

Front

How can you simplify the ratio 10:15?

Back

You can simplify it to 2:3 by dividing both numbers by 5.

Front

What is the ratio of 25 to 20 in simplest form?

Back

The simplest form is 5:4.

Front

If a bag contains 8 red apples and 4 yellow apples, what is the ratio of red to yellow apples?

Back

The ratio is 2:1.

Front

How do you find a missing quantity in a ratio?

Back

You can set up a proportion and solve for the missing quantity.

Front

What is the ratio of 3 red circles to 4 blue stars?

Back

The ratio is 3:4.