Ratios and Equivalent Ratios

Front

What is a ratio?

Back

A ratio is a comparison of two quantities by division, showing how many times one value contains or is contained within the other.

Front

How do you write a ratio?

Back

A ratio can be written in three ways: using a colon (e.g., 3:4), as a fraction (e.g., 3/4), or with the word 'to' (e.g., 3 to 4).

Front

What is an equivalent ratio?

Back

Equivalent ratios are ratios that express the same relationship between numbers, even if the numbers themselves are different.

Front

Are the ratios 1:2 and 2:4 equivalent?

Back

Yes, they are equivalent because both simplify to 1:2.

Front

If there are 2 black, 3 red, and 5 white toy cars, what is the ratio of red toy cars to all toy cars?

Back

The ratio of red toy cars to all toy cars is 3:10.

Front

In a class of 16 boys and 32 girls, what is the ratio of girls to boys in simplest form?

Back

The ratio of girls to boys in simplest form is 2:1.

Front

What is the first step to simplify a ratio?

Back

The first step to simplify a ratio is to divide both terms by their greatest common divisor (GCD).

Front

If a recipe calls for 4 meatballs for every 1 cup of sauce, what is the ratio of meatballs to sauce?

Back

The ratio of meatballs to sauce is 4:1.

Front

How can you find equivalent ratios?

Back

You can find equivalent ratios by multiplying or dividing both terms of the ratio by the same non-zero number.

Front

What is the ratio of 12 noodles to 4 meatballs?

Back

The ratio of 12 noodles to 4 meatballs is 3:1.