Question

Math equation, answer is d. Just need to explain how I got it

Answer 1

Answer:

d (you know that already)

Step-by-step explanation:

1/3+1/4+1/5+13=?

1/3+1/4+1/5=47/60+13=60/60

Since he finishes all the pages by the correct amount of time you know the answer is correct.