Solutions by everydaycalculation.com
The simplest form of 640450 is 6445.
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Equivalent fractions: 1280/900 320/225 1920/1350 3200/2250 128/90 4480/3150
More fractions: 1280/450 640/900 1920/450 640/1350 641/450 640/451639/450 640/449
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