Solutions by everydaycalculation.com
170 - 1270 is -1170.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/70-12/70 1/70-24/70 3/70-12/70 1/70-36/70 5/70-12/70 1/70-60/70 7/70-12/70 1/70-84/70
© everydaycalculation.com