Solutions by everydaycalculation.com
684421 is already in the simplest form. It can be written as 1.624703 in decimal form (rounded to 6 decimal places).
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Equivalent fractions: 1368/842 2052/1263 3420/2105 4788/2947
More fractions: 1368/421 684/842 2052/421 684/1263 685/421 684/422683/421 684/420
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