va rog ajutatima:))
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Răspuns:
am notat spatiul liber cu x
a)2/3=x/18
36=3x
3x=36
x=12
b)4/5=20/x
4x=100
x=25
c)x/8=2/16
x/8=1/8
x=1
d)10/x=40/44
10/x=10/11
x=11