Solutions by everydaycalculation.com
670 + 6370 is 6970.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/70+63/70 18/70+63/70 30/70+63/70 42/70+63/70
© everydaycalculation.com