Equivalent Ratios

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. For example, the ratios 1:2 and 2:4 are equivalent.

Front

How do you determine if two ratios are equivalent?

Back

To determine if two ratios are equivalent, you can cross-multiply and see if the products are equal. For example, for the ratios a:b and c:d, check if a*d = b*c.

Front

Back

No, they are not equivalent.

Front

Are the ratios 2:3 and 8:12 equivalent?

Back

Yes, they are equivalent.

Front

Which ratio is equivalent to 12:20?

Back

3:5 is equivalent to 12:20.

Front

Which ratio is equivalent to 4:7?

Back

12:21 is equivalent to 4:7.

Front

If the ratio of cows to horses is 10:3 and there are 30 cows, how many horses are there?

Back

There are 9 horses.

Front

What is the simplest form of the ratio 8:12?

Back

The simplest form of the ratio 8:12 is 2:3.

Front

If two ratios are equivalent, what can you say about their cross products?

Back

The cross products of equivalent ratios are equal.

Front

What is the ratio of 15 to 25 in simplest form?

Back

The ratio of 15 to 25 in simplest form is 3:5.