Solutions by everydaycalculation.com
1st number: 1 5/20, 2nd number: 4 4/20
2520 - 8420 is -5920.
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Related: 50/20-84/20 25/40-84/20 25/20-84/40 75/20-84/20 25/60-84/20 25/20-84/60
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