Solutions by everydaycalculation.com
The simplest form of 630640 is 6364.
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Equivalent fractions: 1260/1280 315/320 1890/1920 3150/3200 126/128 4410/4480
More fractions: 1260/640 630/1280 1890/640 630/1920 631/640 630/641629/640 630/639
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