pourrai vous maider svp

7) a = 7/3 =2 1/3
b = _4/7 5/7 =1/7
c= 1/2+7/8 = 4/8+7/8=11/8=1 3/8
d=_4/5
e=_12/9 =_1 3/9
f=_5/2 _2 = _9/2=_4 1/2