Solutions by everydaycalculation.com
1090 + 4090 is 59.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/90+40/90 10/90+80/90 30/90+40/90 50/90+40/90 70/90+40/90
© everydaycalculation.com