Solutions by everydaycalculation.com
520 + 310 is 1120.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/20+3/10 5/20+6/10 5/40+3/10 5/20+3/20 15/20+3/10 5/20+9/10 5/60+3/10 5/20+3/30 25/20+3/10 5/20+15/10 5/20+3/50 35/20+3/10 5/20+21/10 5/20+3/70
© everydaycalculation.com