Question

7) If 1 is added to the
numerator of a fraction, it
becomes 1/5, if 1 is taken from
the denominator it becomes
1/7, the fraction is
O a) 7/15
O b) 77/15
O c) 11/15
O d) 13/15
​

Answer 1

Answer:    the fraction is 2/15

Step-by-step explanation:

5.0/5

14

thentuvaralakshmi

Expert

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Let the numerator be x

Then denominator be y

Then the fraction is x/y

According to problem

(x+1)/y=1/5

5x+5=y-------(1)

x/(y-1)=1/7

7x=y-1

7x+1=y-------(2)

Equating (1) and (2) since R.H.S are equal

5x+5=7x+1

7x-5x=5-1

2x=4

x=2

Substitute x=2 in eq-(1)

(1)=>5(2)+5=y

y=10+5

y=15

Therefore the fraction is 2/15

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