Solutions by everydaycalculation.com
The simplest form of 21302100 is 7170.
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Equivalent fractions: 4260/4200 1065/1050 6390/6300 710/700 426/420
More fractions: 4260/2100 2130/4200 6390/2100 2130/6300 2131/2100 2130/21012129/2100 2130/2099
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