Solutions by everydaycalculation.com
815 + 1215 is 43.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/15+12/15 8/15+24/15 8/30+12/15 8/15+12/30 24/15+12/15 8/15+36/15 8/45+12/15 8/15+12/45 40/15+12/15 8/15+60/15 8/75+12/15 8/15+12/75 56/15+12/15 8/15+84/15
© everydaycalculation.com