1 8/12, or 1 2/3
Start by adding the fractions, 5/12 + 3/12.
The denominators stay the same, we just add the numerators. Now we have 1 8/12.
Then we simplify, the numerator and the denominator are both divisible by 4 so we can divide by that, which leaves us with the fraction 2/3.
Final answer is 1 2/3!