Va rog dau coroana si multe puncte pentru raspunsuri complete!

Răspuns:
a )23/6+5/+7/6=35/6
b) 25/12+7/12+5/12=37/12
c) 8/13+5/13+11/13=24/13
d) 4/15+7/15+13/15=24/15