a fraction becomes 8 by 11:00 if 3 is added to both the numerator and denominator has also if 3 is subtracted from the numerator and denominator it becomes 2 / 5 find the fraction
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Let the numbers be x and y
(x+3)/(y+3)=8/11
11x+33=8y+24
11x-8y=24-33
11x-8y= -9
Or
8y-11x=9
(x-3)/(y-3)=2/5
5x-15=2y-6
2y-5x= -15+6
2y-5x= -9
11x-8y=-9
2y -5x is also equal to -9
Therefore,
11x-8y=2y-5x
11x+5x=2y+8y
16x=10y
x/y=10/16
=5/8
Hope it is clear...
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