Ratios and Equivalent Ratios

Front

What is a ratio?

Back

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

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 3 apples to 6 oranges?

Back

1 to 2.

Front

If the ratio of boys to girls in a class is 2:3, how many boys are there if there are 15 girls?

Back

10 boys.

Front

What is the ratio of STARS to SQUARES if there are 3 STARS and 4 SQUARES?

Back

3 to 4.

Front

If 1:2 is an equivalent ratio to 2:4, what is the relationship between these ratios?

Back

They are equivalent ratios.

Front

What is the value of A if the ratio of A to 15 is equivalent to the ratio of 3 to 5?

Back

A = 9.

Front

How can you express the ratio of 10 to 25 in simplest form?

Back

2 to 5.

Front

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

Back

2 to 3.