Answer:
A.
Subtract 37 – 13. Then divide the difference by 4.
Step-by-step explanation:
After the box:
37 - 13 left
No. of bags:
(37 - 13)/4
A(n) is a special type of hyphen that prevents two words separated by a hyphen from splitting at the end of a line.
The problem is:

We now do L.C.M. of numerator and add, also do L.C.M. of denominator and add together:

Dividing by a fraction is same as multiplying by its reciprocal, so we have:

x cancels out, so can multiply and write:

This is the simplified form.
ANSWER: 
The answer is 31 add 14 and 7 then subtract 52 by the 21 thus giving 31