Solutions by everydaycalculation.com
1st number: 9/20, 2nd number: 4 5/10
920 - 4510 is -8120.
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Related: 18/20-45/10 9/20-90/10 9/40-45/10 9/20-45/20 27/20-45/10 9/60-45/10 9/20-45/30 45/20-45/10 9/20-45/50 63/20-45/10 9/20-45/70
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