1/2+3/4

To add fractions, you need a common denominator. The common denominator for 1/2 and 3/4 is 4.

1/2 + 3/4 = (1*2)/(2*2) + (3*1)/(4*1)
= 2/4 + 3/4

Now, we can add the fractions with the same denominator:

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

So, 1/2 + 3/4 = 5/4