Solutions by everydaycalculation.com
1st number: 12/20, 2nd number: 4 18/20
1220 - 9820 is -4310.
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Related: 24/20-98/20 12/40-98/20 12/20-98/40 36/20-98/20 12/60-98/20 12/20-98/60 60/20-98/20 84/20-98/20
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