Solutions by everydaycalculation.com
The simplest form of 21003157 is 300451.
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Equivalent fractions: 4200/6314 6300/9471 300/451
More fractions: 4200/3157 2100/6314 6300/3157 2100/9471 2101/3157 2100/31582099/3157 2100/3156
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