Solutions by everydaycalculation.com
163 - 863 is -19.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/63-8/63 1/63-16/63 3/63-8/63 1/63-24/63 5/63-8/63 1/63-40/63 7/63-8/63 1/63-56/63
© everydaycalculation.com