Step 1: find LCM of denominators 3 and 4.
Since there is no common factor between 3 and 4, the LCM is just the product 12.
Now write each fraction in terms of the LCM as denominator before adding to get the final answer.
2/3=4*2/(4*3)=8/12
3/4=3*3/(3*4)=9/12
Now add the two fractions
8/12+9/12 = (8+9)/12 = 17/12
Reduce to mixed fraction
17/12 = (12+5)/12 = 1 + 5/12 = 1 5/12
