Solutions by everydaycalculation.com
480 + 380 is 780.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/80+3/80 4/80+6/80 12/80+3/80 4/80+9/80 20/80+3/80 4/80+15/80 28/80+3/80 4/80+21/80
© everydaycalculation.com