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

What are equivalent ratios?

Back

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

Front

How do you determine if two ratios are equivalent?

Back

Two ratios are equivalent if you can simplify them to the same fraction or if you can cross-multiply and get the same product.

Front

What is the ratio of 4 red apples to 3 green apples?

Back

4 to 3

Front

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

Back

2 to 3

Front

If 15 students are in a class and 5 of them are girls, what is the ratio of girls to students?

Back

5 to 15, which simplifies to 1 to 3.

Front

What is the ratio of 10 to 25?

Back

The ratio of 10 to 25 simplifies to 2 to 5.

Front

Are the ratios 4:5 and 8:10 equivalent?

Back

Yes, they are equivalent because 4/5 = 8/10.

Front

If a car travels 60 miles in 1 hour, what is the ratio of miles to hours?

Back

60 to 1.

Front

What is the ratio of 12 noodles to 4 meatballs?

Back

The ratio simplifies to 3 to 1.