Solutions by everydaycalculation.com
The simplest form of 9721728 is 916.
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Equivalent fractions: 1944/3456 486/864 2916/5184 324/576 4860/8640
More fractions: 1944/1728 972/3456 2916/1728 972/5184 973/1728 972/1729971/1728 972/1727
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