Solutions by everydaycalculation.com
321 - 221 is 121.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/21-2/21 3/21-4/21 3/42-2/21 3/21-2/42 9/21-2/21 3/21-6/21 3/63-2/21 3/21-2/63 15/21-2/21 3/21-10/21 3/21-14/21
© everydaycalculation.com