Solutions by everydaycalculation.com
45 - 47 is 835.
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Related: 8/5-4/7 4/5-8/7 4/10-4/7 4/5-4/14 12/5-4/7 4/5-12/7 4/15-4/7 4/5-4/21 20/5-4/7 4/5-20/7 4/25-4/7 4/5-4/35 28/5-4/7 4/5-28/7 4/35-4/7 4/5-4/49
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