SOLUTION: Mang David,a carpenter,keeps pieces of lumber in his garage.Of the lumber,1/5 is matnog and 3/5 is molave.How much of the lumber is not matnog nor molave?

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Question 1106132: Mang David,a carpenter,keeps pieces of lumber in his garage.Of the lumber,1/5 is matnog and 3/5 is molave.How much of the lumber is not matnog nor molave?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
+1%2F5+%2B+3%2F5+=+4%2F5+
+4%2F5+ of the lumber is either matnog
or molave
+1-+4%2F5+=+1%2F5+
+1%2F5+ of the lumber is neither of those