Solutions by everydaycalculation.com
1st number: 7/20, 2nd number: 4 4/20
720 - 8420 is -7720.
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Related: 14/20-84/20 7/40-84/20 7/20-84/40 21/20-84/20 7/60-84/20 7/20-84/60 35/20-84/20 49/20-84/20
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