Solutions by everydaycalculation.com
4042 - 1042 is 57.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/42-10/42 40/42-20/42 40/84-10/42 40/42-10/84 40/42-30/42 40/42-50/42 40/42-70/42
© everydaycalculation.com