3/4 + 7/10 + 4/15 =

3/11+ 9/11 +1/11 =

3/4 + 7/10 + 4/15 =

Find the common denominator and convert to equivalent fractions.
3/4 = ?/60
7/10 = ?/60
4/15 = ?/60

Then add the numerators. Reduce the answer.

3/11+ 9/11 +1/11 = 13/11 = 1 2/11