Solutions by everydaycalculation.com
1st number: 9/40, 2nd number: 1 8/10
940 - 1810 is -6340.
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Related: 18/40-18/10 9/40-36/10 9/80-18/10 9/40-18/20 27/40-18/10 9/40-54/10 9/40-18/30 45/40-18/10 9/40-90/10 9/40-18/50 63/40-18/10 9/40-18/70
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