Solutions by everydaycalculation.com
1st number: 9/20, 2nd number: 12 4/5
920 - 645 is -24720.
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Related: 18/20-64/5 9/40-64/5 9/20-64/10 27/20-64/5 9/60-64/5 9/20-64/15 45/20-64/5 9/20-64/25 63/20-64/5 9/20-64/35
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