Solutions by everydaycalculation.com
1st number: 1 3/5, 2nd number: 4/7
85 - 47 is 3635.
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Related: 16/5-4/7 8/5-8/7 8/10-4/7 8/5-4/14 24/5-4/7 8/5-12/7 8/15-4/7 8/5-4/21 40/5-4/7 8/5-20/7 8/25-4/7 8/5-4/35 56/5-4/7 8/5-28/7 8/35-4/7 8/5-4/49
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