Solutions by everydaycalculation.com
450 - 750 is -350.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/50-7/50 4/50-14/50 12/50-7/50 4/50-21/50 20/50-7/50 4/50-35/50 28/50-7/50 4/50-49/50
© everydaycalculation.com