Solutions by everydaycalculation.com
2780 + 2580 is 1320.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/80+25/80 27/80+50/80 81/80+25/80 27/80+75/80
© everydaycalculation.com