A garden has 1/5 grape tomato and 2/9 cherry tomato plants. There are 18 grape tomato plants and 20 cherry tomato plants. How many other plants are there?

Answer 1

Let X by the total number of plants in the garden.

Then (1/5) * X = 18

Or X = 90 total plants

How many other plants are there?

90 - (18 + 20) = 52 other plants.