Solutions by everydaycalculation.com
2160 + 1860 is 1320.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/60+18/60 21/60+36/60 63/60+18/60 21/60+54/60 21/60+90/60
© everydaycalculation.com