Solutions by everydaycalculation.com
1st number: 4/20, 2nd number: 2 9/20
420 - 4920 is -94.
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Related: 8/20-49/20 4/20-98/20 4/40-49/20 4/20-49/40 12/20-49/20 4/60-49/20 4/20-49/60 28/20-49/20
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