5 by 22 + 3 by 7 (-8 by 21) + (-6 by 11)
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5/22 +3/11 (-8/21) +(-6/11)
5/22-3/11 ×8/21 -6/11
5/22 -8/77 -6/11
35-16-84/154
-65/154
5/22-3/11 ×8/21 -6/11
5/22 -8/77 -6/11
35-16-84/154
-65/154
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