= 16/40 15/40 = 31/40
1. He drilled 3 inches total 1 1/3 into the wood and 1 2/3 into the joist.
2/5 3/8 change to a common denominator 40
= 16/40 15/40 = 31/40
2/5 3/8 change to a common denominator 40
by the way, I multiplied the bottom number together to get a common denominator of 40
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