Solutions by everydaycalculation.com
520 - 35 is -720.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/20-3/5 5/20-6/5 5/40-3/5 5/20-3/10 15/20-3/5 5/20-9/5 5/60-3/5 5/20-3/15 25/20-3/5 5/20-15/5 5/20-3/25 35/20-3/5 5/20-21/5 5/20-3/35
© everydaycalculation.com