1 si sase va rog urgent dau coroana!!!

a)3/8+5/8+7/8=15/8
b) 3/17+14/17=17/17=1
c) 3/6+14/6+13/6=30/6 simplificam cu 6=5
d) 2a/19+17a/19+5a/19= (2a+17a+5a) / 19 = 24a / 19
2 5/4
33/10
59/11
215/21
341/36
1679/63
9584/99
26962/251