Solutions by everydaycalculation.com
1230 - 830 is 215.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/30-8/30 12/30-16/30 12/60-8/30 12/30-8/60 36/30-8/30 12/30-24/30 12/90-8/30 12/30-8/90 60/30-8/30 12/30-40/30 84/30-8/30 12/30-56/30
© everydaycalculation.com