Solutions by everydaycalculation.com
1st number: 9/20, 2nd number: 5 4/10
920 - 5410 is -9920.
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Related: 18/20-54/10 9/40-54/10 9/20-54/20 27/20-54/10 9/60-54/10 9/20-54/30 45/20-54/10 9/20-54/50 63/20-54/10 9/20-54/70
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