Solutions by everydaycalculation.com
21001609 is already in the simplest form. It can be written as 1.305158 in decimal form (rounded to 6 decimal places).
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Equivalent fractions: 4200/3218 6300/4827
More fractions: 4200/1609 2100/3218 6300/1609 2100/4827 2101/1609 2100/16102099/1609 2100/1608
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