A= 3×3/4×3+7×2/6×2
A=9/12+14/12
A= 23/12
B= 9/10+5/8
B= 9×4/10×4+5×5/8×5
B= 36/40+25/40
B=61/40
C= 9/14+5/6
C= 27+35/42
C= 62/42
C= 31/21
D= 5/6+1/8
D= 20+3/24
D= 23/24
E= 3/4-7/6
E= 9-14/12
E= -5/12
F= 9/10-5/8
F= 36-25/40
F= 11/40
G= 9/5-5/6
G= 54-25/30
G= 29/30
H= 5/6-1/8; H= 20-3/24; H= 17/24. ✌️