Donald is making a party mix. He bought 2 1/4 pounds of pecans and 3 1/5 pounds of walnuts. How many pounds of nuts did Donald buy in all?
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peacan donald bought = 2(1/4) = 9/4 pounds
walnuts he bought = 3(1/5) = 16/5 pounds
Together he bought = 9/4 + 16/5 =(9*5+16*3) /20 = (45+48)/20 = 93/20 = 4(13/20) pounds ...
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