Question

The numerator of a fraction is 4 less than the denominator. If 1 is added to both, its numerator and denominator, it becomes 1/2. Then the corresponding equation must be
​

Answer 1

Answer:

Let the fraction be ba

Numerator= denominator-4

a=b−4⇒b−a=4

If 1 added to both numerator and denomator then fraction =21

b+1a+1=21

2a+2=b+1

2a−b=−1

(2a−b)+(b−a)=4−1

a=3,b=7

 Fraction=73