Solutions by everydaycalculation.com
1st number: 1 10/30, 2nd number: 1 12/30
4030 - 4230 is -115.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/30-42/30 40/30-84/30 40/60-42/30 40/30-42/60 40/90-42/30 40/30-42/90
© everydaycalculation.com