Solutions by everydaycalculation.com
The simplest form of 99901998 is 51.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Equivalent fractions: 4995/999 3330/666
More fractions: 9990/3996 9990/5994 9991/1998 9990/19999989/1998 9990/1997
© everydaycalculation.com