For example you have the 52, and you have the 24, you look for a number that can go into both that is the largest possible for my example it would be 4 since no number greater can go into both, while 2 would be a option it would not be the greatest.
The first one is 5.3 you multiply 4x4 which is 16 then divide by 3 which then gives you the answer
1. 1.5 and 3.5
2. both equations because they share these particular points
Given overtime A/C and the instructions would be DA