Solutions by everydaycalculation.com
220 - 620 is -15.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/20-6/20 2/20-12/20 2/40-6/20 2/20-6/40 6/20-6/20 2/20-18/20 2/60-6/20 2/20-6/60 10/20-6/20 2/20-30/20 14/20-6/20 2/20-42/20
© everydaycalculation.com