change 7 5/6 to an improper fraction
= 47/6
change 6 1/2 to an improper fraction
13/2
rewrite
Q - 47/6 = 13/2
add 47/6 on both sides
Q = 13/2 + 47/6
times 13/2 by 3 to get a common denominator of 6
Q = 39/6 + 47/6
Q = 86/6
change to mixed number
14 2/6
simplify
= 14 1/3
