Solutions by everydaycalculation.com
420509 is already in the simplest form. It can be written as 0.825147 in decimal form (rounded to 6 decimal places).
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Equivalent fractions: 840/1018 1260/1527 2100/2545 2940/3563
More fractions: 840/509 420/1018 1260/509 420/1527 421/509 420/510419/509 420/508
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