Solutions by everydaycalculation.com
550 - 3050 is -12.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/50-30/50 5/50-60/50 15/50-30/50 5/50-90/50 25/50-30/50 35/50-30/50
© everydaycalculation.com