Solutions by everydaycalculation.com
642 + 1642 is 1121.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/42+16/42 6/42+32/42 6/84+16/42 6/42+16/84 18/42+16/42 6/42+48/42 30/42+16/42 6/42+80/42
© everydaycalculation.com