Are three over five and ten over fifteen equal?

Answer 1

NO!!!!

To compare fractions;-

Bring both fractions to a common denominator and the numerators made equivalent.

Hence

3/5 & 10/15 =>

9/15 & 10/15

We now compare the numerators

Clearly 9 < 10

Hence it follows that

9/15 < 10/15 => 3/5 < 10/15

Answer 2

No.

Three over five is 60%

while ten over fifteen is 66.66%