Solutions by everydaycalculation.com
1st number: 6/20, 2nd number: 2 0/20
620 - 4020 is -1710.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/20-40/20 6/20-80/20 6/40-40/20 18/20-40/20 6/60-40/20 6/20-40/60 30/20-40/20 42/20-40/20
© everydaycalculation.com