Practice!

Sample Problem

The ratio of dogs to cats in pet center A is 2:5. The ratio of dogs to cats in pet center B is 6:11. If the two pet centers have the same number of dogs, which pet center has more cats?

Solution

Multiply each part of the ratio of 2:5 by 3, we can get one of its equivalent ratios.

2:5 = (2 × 3) : (5 × 3) = 6:15

Then, comparing the ratio of 6:15 and the ratio of 6:11, we can find that:

The number of dogs is 6 units

The number of cats for pet center A is 15 units.

The number of cats for pet center B is 11 units.

Thus, pet center A has more cats than pet center B.