Solutions by everydaycalculation.com
1st number: 5/21, 2nd number: 3 17/21
521 + 8021 is 8521.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/21+80/21 5/42+80/21 5/21+80/42 15/21+80/21 5/63+80/21 5/21+80/63 25/21+80/21 35/21+80/21
© everydaycalculation.com