Math homework help please.......??

Question

A jeweler has a length of gold chain 44 3/5 inches long He used pieces of 6 7/8 inches, 10 1/3 inches, and 8 2/5 inches long to make jewelry. About How much chain does he have left? Estimate our answer to the nearest inch.

Answer 1

Since we are estimating, the chain is 45 inches long, minus 7, minus 10, minus 8 = 20

Answer 2

omg! i had like this exact problem before!!! what math are you taking? i would give you an answer but somebody already did...about 20