Question

What may be added to (1/2 - 1/3 + 1/4) to make the result equal to 1?​

Answer 1

Answer:

Let the number be x

(1/2+1/3+1/5)+x=4

l.c.m of 2,3,5=30

(15+10+6)/30=31/30

x=4–31/30

x=89/30

Answer 2

$\frac{1}{2} - \frac{1}{3} + \frac{1}{4} + \frac{x}{1} = - 1$

$\frac{6 - 4 + 3 + x}{12} = - 1$

$2 + 3 + x= - 1 \times 12$

$5 + x = - 12$

$- x = - 12 - 5$

$- x = - 17$

$x = 17$