Solutions by everydaycalculation.com
921 - 59 is -863.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/21-5/9 9/21-10/9 9/42-5/9 9/21-5/18 27/21-5/9 9/21-15/9 9/63-5/9 9/21-5/27 45/21-5/9 9/21-25/9 9/21-5/45 63/21-5/9 9/21-35/9 9/21-5/63
© everydaycalculation.com