SOLUTION: Add or subtract. Simplify, if necessary. 4 lb 15 oz + 3 lb 13 oz

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Question 207128: Add or subtract. Simplify, if necessary.
4 lb 15 oz
+ 3 lb 13 oz
Answer by jim_thompson5910(35256)   (Show Source): You can put this solution on YOUR website!
Simply add up like terms: 

      4 lb 15 oz
    + 3 lb 13 oz
 ----------------
      7 lb 28 oz


Since 16 oz = 1 lb, this means that 28 oz = 1 lb 12 oz (since 28=16+12). So 7 lb 28 oz breaks down to

7 lb 28 oz = 7 lb + (1 lb 12 oz) = 8 lb 12 oz


So the final answer is 8 pounds 12 ounces.


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