Solutions by everydaycalculation.com
1st number: 9/21, 2nd number: 3 17/21
921 - 8021 is -7121.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/21-80/21 9/42-80/21 9/21-80/42 27/21-80/21 9/63-80/21 9/21-80/63 45/21-80/21 63/21-80/21
© everydaycalculation.com