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Determinati fractia x supra y stiind ca este echivalenta 3 supra 2 si x-y=3

Răspuns :

x/y=3/2==>2x=3y
x=3y/2
x-y=3
3y/2-y=3
amplificam y simplu cu 2 si devine 2y/2
3y/2-2y/2=y/2
y/2=3 ==> y=6
x/y=3/2
x/6=3/2
2x=18 ==> x=9

x=9

y=6