if 1 is added to the numerator of a fraction it becomes 1/5.if 1 is substracted from the denominator , it becomes 1/7.find the fraction step by step pla
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Step-by-step explanation:
let numerator=x
denominator=y
x+1/y=1/5
5(x+1)=y
5x+5=y
5x-y=-5 -----eq. 1
x/y-1=1/7
7x=y-1
7x-y=-1 --------eq. 2
subtracting eq. 2 from eq. 1
5x-y=-5
7x-y=-1
- + +
_____________
-2x=-4
-x=-2
x=2
substituting in eq. 1
5x-y=-5
5×2-y=-5
10-y=-5
-y=-15
y=15
HOPE IT HELPS YOU☺️☺️
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