Solutions by everydaycalculation.com
1st number: 3/20, 2nd number: 7 2/10
320 - 7210 is -14120.
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Related: 6/20-72/10 3/40-72/10 3/20-72/20 9/20-72/10 3/60-72/10 3/20-72/30 15/20-72/10 3/20-72/50 21/20-72/10 3/20-72/70
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