Solutions by everydaycalculation.com
The simplest form of 666633 is 222211.
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Equivalent fractions: 1332/1266 1998/1899 222/211 3330/3165 4662/4431
More fractions: 1332/633 666/1266 1998/633 666/1899 667/633 666/634665/633 666/632
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