Solutions by everydaycalculation.com
742 + 142 is 421.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/42+1/42 7/42+2/42 7/84+1/42 7/42+1/84 21/42+1/42 7/42+3/42 35/42+1/42 7/42+5/42 49/42+1/42 7/42+7/42
© everydaycalculation.com