Ex 7 va rog din suflet!!!! Seen=Block
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Răspuns:
a)(3-1/3)°(9/8)*2
(3/3-1/3)*81/64
2/3*81/64
27/32
b)3/4:(3/4-1/2)-4/9
3/4:(3/4-2/4)-4/9
3/4:1/4-4/9
3/4*4/1-4/9
12/4-4/9
3/1-4/9
27/9-4/9
23/9