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  • If we add 1 to the numerator and subtract 1 from the denominator, a fraction reduces to 1. It becomes   &nb

If we add 1 to the numerator and subtract 1 from the denominator, a fraction reduces to 1. It becomes  \frac{1}{2}  if we only add 1 to the denominator.  What is the fraction ?   

let the fraction be x/y

 

 

 
 
 
 
 

Answers (1)

\\\frac{x+1}{y-1}=1\ or\\x+1=y-1\\x-y=-2........(1)\\Also\ given\\\frac{x}{y+1}=\frac{1}{2}\ or\\2x=y+1\\2x-y=1.......(2)\\(2)-(1)\ implies\ \\x=3\\from (1)\\3-y=-2\\y=5\\\text{Therefore the fraction is }\\\\\frac{3}{5}

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Safeer PP

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