Solutions by everydaycalculation.com
The simplest form of 640426 is 320213.
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Equivalent fractions: 1280/852 320/213 1920/1278 3200/2130 4480/2982
More fractions: 1280/426 640/852 1920/426 640/1278 641/426 640/427639/426 640/425
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