Question

what should be added to 1/3 to get 3/4

Answer 1

1/3+ x=3/4
x=3/4-1/3
take their LCM 3,4=12
hence proved...

Answer 2

Answer:

1/2 + x = 3/4

x = 3/4-1/2

lcm = 4

x= 3/4 - 2/4

x= 1/4