Solutions by everydaycalculation.com
1st number: 5/21, 2nd number: 4 0/7
521 - 287 is -7921.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/21-28/7 5/21-56/7 5/42-28/7 5/21-28/14 15/21-28/7 5/21-84/7 5/63-28/7 5/21-28/21 25/21-28/7 5/21-28/35 35/21-28/7 5/21-28/49
© everydaycalculation.com