Solutions by everydaycalculation.com
1870 + 2170 is 3970.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/70+21/70 18/70+42/70 54/70+21/70 18/70+63/70 90/70+21/70
© everydaycalculation.com