Solutions by everydaycalculation.com
660 + 2560 is 3160.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/60+25/60 6/60+50/60 18/60+25/60 6/60+75/60 30/60+25/60 42/60+25/60
© everydaycalculation.com