Solutions by everydaycalculation.com
45 - 79 is 145.
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Related: 8/5-7/9 4/5-14/9 4/10-7/9 4/5-7/18 12/5-7/9 4/5-21/9 4/15-7/9 4/5-7/27 20/5-7/9 4/5-35/9 4/25-7/9 4/5-7/45 28/5-7/9 4/5-49/9 4/35-7/9 4/5-7/63
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