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Penyebut = y
(x+2) / (y+1) = 1/2
(x+1) / (y-2) = 3/5
x+1 = 3
x = 3-1
x = 2
y-2 = 5
y = 5+2
y = 7
Buktikan :
(x+2) / (x+1) = 1/2
(2+2) / (7+1) = 1/2
4 / 8 = 1/2 (BENAR)
Maka,
Pecahan yang dimaksud (x/y) adalah 2/7