The sum of 12 1/4 + 5 5 / 6.

18 1/12

Step-by-step explanation:

find the least common denominator which is 12

multiply both fractions by the number need to get to the LCD 3/12 and 10/12

add and simplify 13/12 = 1 1/12

12 + 5 + 1 1/12=18 1/12

43/6

Step-by-step explanation:

12 * 1/4 + 5 * 5/6

= 12/4 + 25/6

= 3 + 25/6

= (18 + 25) / 6

= 43/6