Solutions by everydaycalculation.com
830 - 910 is -1930.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/30-9/10 8/30-18/10 8/60-9/10 8/30-9/20 24/30-9/10 8/30-27/10 8/90-9/10 8/30-9/30 40/30-9/10 8/30-45/10 8/30-9/50 56/30-9/10 8/30-63/10 8/30-9/70
© everydaycalculation.com