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penyebut=y
(x+2)/(y+1)=1/2
2(x+2)=1(y+1)
2x+4=y+1
2x-y=-3
(x+1)/(y-2)=3/5
5(x+1)=3(y-2)
5x+5=3y-6
5x-3y=-11
2x-y=-3 ………×3
5x-3y=-11………×1
______________
6x-3y=-9
5x-3y=-11
________-
X=2
X=2 => 2x-y=-3
2.2-y=-3
y=4+3=7
jadi, pecahan yang dimaksud adalah 2/7