Yeilin
11 and 1/3 subtract 9/7



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Hero
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11 1/3  9/7
(11  0) + (1/3  9/7)
(10) + (4/3  9/7)
10 + (28/21  27/21)
10 + (1/21)
10 and 1/21

amorfide
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@Hero Even I can't follow what you did lol. where did 4/3 come from?

Hero
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It's called borrowing

amorfide
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ohhh 3/3

Hero
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Looks like you figured it out