Solutions by everydaycalculation.com
1st number: 15/20, 2nd number: 4 4/20
1520 - 8420 is -6920.
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Related: 30/20-84/20 15/40-84/20 15/20-84/40 45/20-84/20 15/60-84/20 15/20-84/60 75/20-84/20
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