Solutions by everydaycalculation.com
1st number: 10/20, 2nd number: 1 8/20
1020 - 2820 is -910.
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Related: 10/20-56/20 10/40-28/20 10/20-28/40 30/20-28/20 10/20-84/20 10/60-28/20 10/20-28/60 50/20-28/20 70/20-28/20
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