Question

Ecuador has 52 volcanoes, but only 17 are active. Approximately what fraction of Ecuador's volcanoes is inactive?

Answer 1

Ecuador has a total of 52 volcanoes. And 17 of which are active. If you have a circle that has 52 sections, then 17 of those sections would be shaded in.

But we need to find the inactive volcanoes. Just subtract 17 from 52 then place the difference over 52.

52 - 17 = 35/52

EDIT:

I found a mistake in my answer.

Answer 2

17 out of 52 so 17/52 x 100 = 32.69 are active so 67.31 are not