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Cum fac asta?????? Va rog repede ​

Cum Fac Asta Va Rog Repede class=

Răspuns :

a) Ma = a+b :2

7/2+3/4:2= 28+6=34:2=17.

b)5/6+7/4=20+42=62:2=31

c)1/6+8/9=9+48=28,5