Solutions by everydaycalculation.com
The simplest form of 660668 is 165167.
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Equivalent fractions: 1320/1336 330/334 1980/2004 3300/3340 4620/4676
More fractions: 1320/668 660/1336 1980/668 660/2004 661/668 660/669659/668 660/667
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