Solutions by everydaycalculation.com
720 - 910 is -1120.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/20-9/10 7/20-18/10 7/40-9/10 7/20-9/20 21/20-9/10 7/20-27/10 7/60-9/10 7/20-9/30 35/20-9/10 7/20-45/10 7/20-9/50 49/20-9/10 7/20-63/10 7/20-9/70
© everydaycalculation.com