Solutions by everydaycalculation.com
870 + 570 is 1370.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/70+5/70 8/70+10/70 24/70+5/70 8/70+15/70 40/70+5/70 8/70+25/70 56/70+5/70 8/70+35/70
© everydaycalculation.com