Solutions by everydaycalculation.com
921 - 89 is -2963.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/21-8/9 9/21-16/9 9/42-8/9 9/21-8/18 27/21-8/9 9/21-24/9 9/63-8/9 9/21-8/27 45/21-8/9 9/21-40/9 9/21-8/45 63/21-8/9 9/21-56/9 9/21-8/63
© everydaycalculation.com