Solutions by everydaycalculation.com
The simplest form of 12121515 is 45.
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Equivalent fractions: 2424/3030 3636/4545 404/505 6060/7575
More fractions: 2424/1515 1212/3030 3636/1515 1212/4545 1213/1515 1212/15161211/1515 1212/1514
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