VA ROG!!!!!!!!!!!!DAU CORONITA!!!!!!!!!!
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Răspuns
Explicație pas cu pas:
a(21/5 ,
b) 5/4
c)4
d)28
e)3/5
f)6/35
g)1/15
h)11/10
i)34/3
j)1
k)10/21
l)9/5