Ratios & 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 does it mean for two ratios to be equivalent?

Back

Two ratios are equivalent if they represent the same relationship between quantities, even if the numbers are different.

Front

How can you find an equivalent ratio?

Back

To find an equivalent ratio, you can multiply or divide both terms of the ratio by the same non-zero number.

Front

If the ratio of A to B is 3:4, what is the ratio of B to A?

Back

The ratio of B to A is 4:3.

Front

What is the ratio of chocolate chips to flour in a recipe that calls for 3 cups of flour and 2 cups of chocolate chips?

Back

The ratio of chocolate chips to flour is 2:3.

Front

If there are 15 blue Jolly Ranchers and the ratio of blue to red is 3:4, how many red Jolly Ranchers are there?

Back

There are 20 red Jolly Ranchers.

Front

What is the simplified form of the ratio 10:15?

Back

The simplified form of the ratio 10:15 is 2:3.

Front

How do you express the ratio of moons to suns if there are 4 moons and 8 suns?

Back

The ratio of moons to suns is 4:8, which simplifies to 1:2.

Front

What is the value of x in the ratio 5:x = 10:20?

Back

The value of x is 10.

Front

If the ratio of cats to dogs is 2:5, how many dogs are there if there are 10 cats?

Back

There are 25 dogs.