Solutions by everydaycalculation.com
1st number: 3/20, 2nd number: 4 5/10
320 - 4510 is -8720.
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Related: 6/20-45/10 3/20-90/10 3/40-45/10 3/20-45/20 9/20-45/10 3/60-45/10 3/20-45/30 15/20-45/10 3/20-45/50 21/20-45/10 3/20-45/70
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