Solutions by everydaycalculation.com
1st number: 8/20, 2nd number: 1 7/20
820 - 2720 is -1920.
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Related: 16/20-27/20 8/20-54/20 8/40-27/20 8/20-27/40 24/20-27/20 8/20-81/20 8/60-27/20 8/20-27/60 40/20-27/20 56/20-27/20
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