Question

12 9/10 - 9 3/10...?...

Answer 1

3 6/10 =3 3/5

its is 3 6/10 bit you have to simplify

Answer 2

3 6/10 (or 3 3/5, it equals the same thing)

Explanation:

12 - 9 = 3 (that's pretty simple)

then you do 9/10 - 3/10 which would be equal to 6/10

i hope this helps :)