Understanding of Fractions

Sam had 10 teddy bears in his toy store.He sold 2/5 of the teddy bears.

How much teddy bears are left in the toy store?

1 bear left

I know this because I divided the 5 with the 10 and the answer was 2.

Then I divided the answer 2 with the Numerator and got the answer 1.

Mel’s birthday cake?

Mel had her cake half in 2/8 to share with her 8 friends.

How much cake does she still have?

She has 5 pieces left

I know this because I divided 8 & 2, then I got the number 4, meanwhile I got the Denominator and divided it with the 4 and got the answer 5.

This is my understanding of what a fraction is.