Solutions by everydaycalculation.com
59 - 78 is -2372.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/9-7/8 5/9-14/8 5/18-7/8 5/9-7/16 15/9-7/8 5/9-21/8 5/27-7/8 5/9-7/24 25/9-7/8 5/9-35/8 5/45-7/8 5/9-7/40 35/9-7/8 5/9-49/8 5/63-7/8 5/9-7/56
© everydaycalculation.com