please explain your answer!!

279/4 is the answer
Step-by-step explanation:
1/3 + 5/12 + 69
4/12 + 5/12 + 69
4 + 5 = 9
9/12 + 69
3/4 + 69
(276/4)
3/4 + 276/4
add 3 and 276 to get 279
Answer: 279/4 or 69.75 as a decimal
I just realized this probably doesn't answer the question, ignore my response if it seems inaccurate