Solutions by everydaycalculation.com
521 - 27 is -121.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/21-2/7 5/21-4/7 5/42-2/7 5/21-2/14 15/21-2/7 5/21-6/7 5/63-2/7 5/21-2/21 25/21-2/7 5/21-10/7 5/21-2/35 35/21-2/7 5/21-14/7 5/21-2/49
© everydaycalculation.com