Solutions by everydaycalculation.com
930 - 2530 is -815.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/30-25/30 9/30-50/30 9/60-25/30 9/30-25/60 27/30-25/30 9/30-75/30 9/90-25/30 9/30-25/90 45/30-25/30 63/30-25/30
© everydaycalculation.com