Question

The hole for a support needs to be 5 feet deep. It is currently 2 feet 5 inches deep. How much deeper must the hole​ be?

Factor 12 inches/ 1 foot

Answer 1

Answer: 2 feet, 7 inches

Explanation:

2 feet can be converted to 24 inches

5 feet can be converted to 60 inches

60-29=31

31/12=2 7/12

2 feet, 7 inches

Answer 2

What you need to calculate is how many feet deeper the hole needs to be.
Let’s try to do this a different way. 5 feet is= 60 inches.
2 feet 5 inches=29 inches
60-29=31
How many feet can fit into 31 inches?
2 feet
With 7 inches left over.
2 feet 7 inches.