Solutions by everydaycalculation.com
1st number: 9/20, 2nd number: 10 4/6
920 - 646 is -61360.
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Related: 18/20-64/6 9/40-64/6 9/20-64/12 27/20-64/6 9/60-64/6 9/20-64/18 45/20-64/6 9/20-64/30 63/20-64/6 9/20-64/42
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