Solutions by everydaycalculation.com
The simplest form of 12121815 is 404605.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Equivalent fractions: 2424/3630 3636/5445 404/605 6060/9075
More fractions: 2424/1815 1212/3630 3636/1815 1212/5445 1213/1815 1212/18161211/1815 1212/1814
© everydaycalculation.com