Solutions by everydaycalculation.com
1st number: 18/21, 2nd number: 1 1/7
1821 + 87 is 21.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/21+8/7 18/21+16/7 18/42+8/7 18/21+8/14 54/21+8/7 18/21+24/7 18/63+8/7 18/21+8/21 90/21+8/7 18/21+40/7 18/21+8/35 18/21+56/7 18/21+8/49
© everydaycalculation.com