Solutions by everydaycalculation.com
The simplest form of 721728 is 103104.
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Equivalent fractions: 1442/1456 2163/2184 3605/3640 5047/5096 103/104
More fractions: 1442/728 721/1456 2163/728 721/2184 722/728 721/729720/728 721/727
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