Solutions by everydaycalculation.com
521 - 912 is -4384.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/21-9/12 5/21-18/12 5/42-9/12 5/21-9/24 15/21-9/12 5/21-27/12 5/63-9/12 5/21-9/36 25/21-9/12 5/21-45/12 5/21-9/60 35/21-9/12 5/21-63/12 5/21-9/84
© everydaycalculation.com