Solutions by everydaycalculation.com
1st number: 3/20, 2nd number: 2 6/7
320 - 207 is -379140.
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Related: 6/20-20/7 3/20-40/7 3/40-20/7 3/20-20/14 9/20-20/7 3/20-60/7 3/60-20/7 3/20-20/21 15/20-20/7 3/20-20/35 21/20-20/7 3/20-20/49
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