Solutions by everydaycalculation.com
The simplest form of 21151115 is 423223.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Equivalent fractions: 4230/2230 6345/3345 423/223
More fractions: 4230/1115 2115/2230 6345/1115 2115/3345 2116/1115 2115/11162114/1115 2115/1114
© everydaycalculation.com