Question 627239
subtract from 15 1\2 sum of 2 \13 and 4 2\5.
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31/2 - (2/13 + 22/5)
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= 31/2 - [(10+286)/65]
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= 31/2 - [296/65]
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= (65*31-2*296)/130
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= 1423/130
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= 10 123/130
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Cheers,
Stan H.