Solutions by everydaycalculation.com
818 - 1618 is -49.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/18-16/18 8/18-32/18 8/36-16/18 8/18-16/36 24/18-16/18 8/18-48/18 8/54-16/18 8/18-16/54 40/18-16/18 8/18-80/18 8/90-16/18 8/18-16/90 56/18-16/18
© everydaycalculation.com