Solutions by everydaycalculation.com
1530 - 930 is 15.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 15/30-18/30 15/60-9/30 15/30-9/60 45/30-9/30 15/30-27/30 15/90-9/30 15/30-9/90 75/30-9/30 15/30-45/30 15/30-63/30
© everydaycalculation.com