Solutions by everydaycalculation.com
1st number: 4/10, 2nd number: 1 5/20
410 - 2520 is -1720.
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Related: 8/10-25/20 4/10-50/20 4/20-25/20 4/10-25/40 12/10-25/20 4/10-75/20 4/30-25/20 4/10-25/60 20/10-25/20 4/50-25/20 28/10-25/20 4/70-25/20
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