Solutions by everydaycalculation.com
970 - 5070 is -4170.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/70-50/70 27/70-50/70 45/70-50/70 63/70-50/70
© everydaycalculation.com