Question

Scott has to memorize 25 vocabulary words. He has memorized 15 out of the 25 words. What fraction of words does Scott have left to memorize?

Answer 1

well...
15:25 are memorized already.
10 more need to be memorized. leaving it with either
the ratio of
10:25
The fraction of
10/25
and the percentage of
40%

Answer 2

Hello!

He has memorized 15

He has not memorized 10

So he has 10/25 left to memorize

We can simplify this to 2/5

Hope this helps!