Ratio Word Problems

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:b'.

Front

How do you write a ratio in simplest form?

Back

To write a ratio in simplest form, divide both quantities by their greatest common factor.

Front

If the ratio of apples to oranges is 3:2, how many oranges are there if there are 9 apples?

Back

There are 6 oranges.

Front

What does it mean if a ratio is 1:4?

Back

It means for every 1 of the first quantity, there are 4 of the second quantity.

Front

How do you find the total number of items when given a ratio?

Back

Add the parts of the ratio together and then use that sum to find the total based on the given quantity.

Front

If the ratio of boys to girls in a class is 2:3 and there are 10 boys, how many girls are there?

Back

There are 15 girls.

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.

Front

What is a part-to-whole ratio?

Back

A part-to-whole ratio compares a part of a quantity to the entire quantity, such as the ratio of boys to the total number of students.

Front

If a recipe calls for a ratio of 2:1 for flour to sugar, how much sugar is needed if you use 4 cups of flour?

Back

You need 2 cups of sugar.

Front

How do you solve a word problem involving ratios?

Back

Identify the quantities involved, write the ratio, set up a proportion, and solve for the unknown.