Solutions by everydaycalculation.com
1st number: 1 8/10, 2nd number: 5 4/10
1810 - 5410 is -185.
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Related: 36/10-54/10 18/20-54/10 18/10-54/20 54/10-54/10 18/30-54/10 18/10-54/30 90/10-54/10 18/50-54/10 18/10-54/50 18/70-54/10 18/10-54/70
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