8. The numerator of a fraction is smaller than its denominator by 1. If the numerator is increased by 4 and the denominator is doubled the number becomes 1. Find the fraction.
The numerator of a fraction is smaller than its denominator by 1. If the numerator is increased by 4 and the denominator is doubled the number becomes 1. Find the fraction.
Answer:
Required Answer :-
Let the fraction be x – 1/x
[tex] \sf \dfrac{x – 1 + 4}{2x} = 1[/tex]
[tex] \sf \: \dfrac{x + 3}{2x} = 1[/tex]
[tex] \sf \: x + 3 = 2x[/tex]
[tex] \sf \: 2x – x = 3[/tex]
[tex] \sf \: x = 3[/tex]
Fraction = 3 – 1 + 4/2(3)
Fraction = 2/3
V E R I F I C A T I O N :
[tex] \sf \: \dfrac{3 – 1 + 4}{2(3)} = 1[/tex]
[tex] \sf \: \dfrac{7 – 1}{6} = 1[/tex]
[tex] \sf \: \dfrac{6 }{6} = 1[/tex]
[tex] \sf \: 1 = 1[/tex]
Question:–
To Find:–
Solution:–
Here ,
According to the Question:-
[tex]\tt\implies \: \dfrac { x – 1 + 4 } { 2x } = 1 [/tex]
[tex]\tt\implies \: x + 3 = 2x [/tex]
[tex]\tt\implies \: 2x – x = 3 [/tex]
[tex]\tt\implies \: x = 3 [/tex]
Hence ,