Answer:
Given that,
Length of piece of wood is 15 feet
A carpenter needs 10 and five-twelfths feet of wood.
To find,
How much wood should be cut?
Solution,
Total length of piece is 15 feet
He needs 10\dfrac{5}{12}10
12
5
part of wood
So,
Wood he should cut = total length - needed piece of wood
Wood he should cut = 15-10\dfrac{5}{12}15−10
12
5
Wood he should cut = \dfrac{55}{12}=4\dfrac{7}{12}\ \text{feet}
12
55
=4
12
7
feet
So, he must cut 4\dfrac{7}{12}\ \text{feet}4
12
7
feet of wood.