Solutions by everydaycalculation.com
The simplest form of 42002100 is 21.
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Equivalent fractions: 8400/4200 2100/1050 1400/700 840/420 600/300
More fractions: 8400/2100 4200/4200 4200/6300 4201/2100 4200/21014199/2100 4200/2099
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