Solutions by everydaycalculation.com
The simplest form of 21001001 is 300143.
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Equivalent fractions: 4200/2002 6300/3003 300/143
More fractions: 4200/1001 2100/2002 6300/1001 2100/3003 2101/1001 2100/10022099/1001 2100/1000
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