what is 1 2/3+3/4

2/3 and 3/4 has the equal of 12

 

8/12 + 9/12

 

add it up:
 

17/12 = 1+5/12

 

sum it all together:

 

1+1+5/12=2+5/12

add two 12/12 if you want:

29/12 and 2+5/12 is both correct answers.