Solutions by everydaycalculation.com
1st number: 1 2/10, 2nd number: 2 5/10
1210 - 2510 is -1310.
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Related: 24/10-25/10 12/10-50/10 12/20-25/10 12/10-25/20 36/10-25/10 12/10-75/10 12/30-25/10 12/10-25/30 60/10-25/10 12/50-25/10 12/10-25/50 84/10-25/10 12/70-25/10 12/10-25/70
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