Solutions by everydaycalculation.com
3540 + 3040 is 138.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/40+30/40 35/40+60/40 35/80+30/40 35/40+30/80 35/40+90/40
© everydaycalculation.com