Solutions by everydaycalculation.com
1645 - 745 is 15.
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Related: 32/45-7/45 16/45-14/45 16/90-7/45 16/45-7/90 48/45-7/45 16/45-21/45 80/45-7/45 16/45-35/45 16/45-49/45
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