3 1/2 + 4 3/5 + 1 3/4 =

3 1/2 + 4 3/5 + 1 3/4
= 7/2 + 23/5 + 7/4
= 70/20 + 92/20 + 35/20
= 197/20
= 9 17/20

Maaf klo salah dan semoga membantu : )

31/2 + 43/5 + 1 3/4
(3+4+1) + 1/2 +3/5+3/4
(8) + 10/20 +12/20+15/20
(8 )+ 37/20
=8 37/20 atau 9 17/20