Solutions by everydaycalculation.com
590 - 4990 is -2245.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/90-49/90 5/90-98/90 15/90-49/90 25/90-49/90 35/90-49/90
© everydaycalculation.com