Solutions by everydaycalculation.com
1st number: 3/20, 2nd number: 2 5/15
320 - 3515 is -13160.
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Related: 6/20-35/15 3/20-70/15 3/40-35/15 3/20-35/30 9/20-35/15 3/60-35/15 3/20-35/45 15/20-35/15 3/20-35/75 21/20-35/15
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