Ratios and Equivalent 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 the ratio of STARS to SQUARES if there are 3 STARS and 4 SQUARES?

Back

3 to 4

Front

What is an equivalent ratio?

Back

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

Front

If a recipe calls for 3 cups of flour and 2 cups of chocolate chips, what is the ratio of chocolate chips to flour?

Back

2 : 3

Front

How can you find an unknown value using equivalent ratios?

Back

You can set up a proportion using known ratios to solve for the unknown value.

Front

What is the ratio of red toy cars to all toy cars if Patrick has 2 black, 3 red, and 5 white toy cars?

Back

3:10

Front

In the ratio 4 meatballs : 1 cup of sauce, how many meatballs are there for each cup of sauce?

Back

There are 4 meatballs for each cup of sauce.

Front

What is the first step to simplify a ratio?

Back

Find the greatest common factor (GCF) of the two numbers in the ratio and divide both by that number.

Front

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

Back

15 girls.

Front

What does it mean if two ratios are proportional?

Back

It means that the two ratios express the same relationship between their respective quantities.