a) 7/3-4/3=3/4
b)17/5-7/5=10/5
c)17/60-2/60=15/60
d)nu se vede pe imaginea facuta de tine!
e)4 2/3-1 1/3=14/3-4/3=10/3
f)4 5/9-2 2/9=41/9-20/9=21/9
g)7 11/15-2 1/15= 116/15-31/15=85/15
h)nu se vede:((
i)4 5/6-1 1/6= 29/6-7/6=22/6simplificam cu 2=>11/3
j)3 8/9-2 2/9=35/9-20/9=15/9
k)7 10/15-2 1/15=115/15-31/15=84/15
succes in continuare!