The sum of the numerator and denominator of a fraction is 12. If the denominator is
creased by 3, the fraction becomes 1/2 . Find the fraction.
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Answer:
let x be numerator and y be the denominator
x+y=12
denominator is increased by3
x/y+3=1/2
2x=y+3
2x-y=3
from both equations
3x=15
x=5
y=8
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