Solutions by everydaycalculation.com
915 - 79 is -845.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/15-7/9 9/15-14/9 9/30-7/9 9/15-7/18 27/15-7/9 9/15-21/9 9/45-7/9 9/15-7/27 45/15-7/9 9/15-35/9 9/75-7/9 9/15-7/45 63/15-7/9 9/15-49/9 9/15-7/63
© everydaycalculation.com