Solutions by everydaycalculation.com
1st number: 2/8, 2nd number: 1 8/10
28 - 1810 is -3120.
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Related: 4/8-18/10 2/8-36/10 2/16-18/10 2/8-18/20 6/8-18/10 2/8-54/10 2/24-18/10 2/8-18/30 10/8-18/10 2/8-90/10 2/40-18/10 2/8-18/50 14/8-18/10 2/56-18/10 2/8-18/70
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