Solutions by everydaycalculation.com
The simplest form of 21001990 is 210199.
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Equivalent fractions: 4200/3980 1050/995 6300/5970 420/398
More fractions: 4200/1990 2100/3980 6300/1990 2100/5970 2101/1990 2100/19912099/1990 2100/1989
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