answer this x-1/3=1/4

find the LCD (lowest common denominator) and then solve

Example: 1/2 + 1/3
the LCD is 6 therefore,
1/2 = 3/6 and 1/3 = 2/6

1/2 + 1/3 = 3/6 + 2/6 = 5/6

Do the same for your problem