What is 5/8+1/4 in simplest form

First of all we need to find the least common denominator (LCD) to be able to add the fractions; the LCD if the fractions is 8.

so now you could add your numerators cause you have like denominators;

5/8 + 2/8 = 7/8

Your final answer is: 7/8 (it can't simplify any further)