Solutions by everydaycalculation.com
The simplest form of 640820 is 3241.
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Equivalent fractions: 1280/1640 320/410 1920/2460 3200/4100 128/164 4480/5740
More fractions: 1280/820 640/1640 1920/820 640/2460 641/820 640/821639/820 640/819
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