Solutions by everydaycalculation.com
The simplest form of 21061521 is 1813.
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Equivalent fractions: 4212/3042 6318/4563 702/507
More fractions: 4212/1521 2106/3042 6318/1521 2106/4563 2107/1521 2106/15222105/1521 2106/1520
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