How do you simplify #(1 3/4+ 2 3/8)+5 7/8#?
I'm sure you've heard it said before by your teachers:
use common denominators.
Change 3/4 into 6/8 to be able to add the fractions in the parenthesis,
Simplify, and you have
Now add that to the last fraction,
with a result of
Simplify once more and you get 10.