Question 941268
To add the fractions, we must have a least common denominator, which in this case is 24. 

6 had to be multiplied by 4 to become 24, so do the same to 5 to get 20.
8 had to be multiplied by 3 to become 24, so do the same to 7 to get 21.

{{{20/24+21/24}}}
The denominator remains the same, but add the two numerators, 20 and 21, to get:
{{{41/24}}}
Simplify the fraction to get {{{1}}}{{{17/24}}}.
Hope I helped. Please, feel free to ask me any questions.