Solutions by everydaycalculation.com
The simplest form of 690690 is 11.
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Equivalent fractions: 1380/1380 345/345 2070/2070 230/230 3450/3450 138/138 4830/4830
More fractions: 1380/690 690/1380 2070/690 690/2070 691/690 690/691689/690 690/689
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