Solutions by everydaycalculation.com
518 - 1218 is -718.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/18-12/18 5/18-24/18 5/36-12/18 5/18-12/36 15/18-12/18 5/18-36/18 5/54-12/18 5/18-12/54 25/18-12/18 5/18-60/18 5/90-12/18 5/18-12/90 35/18-12/18 5/18-84/18
© everydaycalculation.com