Solutions by everydaycalculation.com
15 - 16 is 130.
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Related: 2/5-1/6 1/5-2/6 1/10-1/6 1/5-1/12 3/5-1/6 1/5-3/6 1/15-1/6 1/5-1/18 1/5-5/6 1/25-1/6 1/5-1/30 7/5-1/6 1/5-7/6 1/35-1/6 1/5-1/42
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