Solutions by everydaycalculation.com
1st number: 30/40, 2nd number: 2 10/40
3040 + 9040 is 31.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/40+90/40 30/80+90/40 30/40+90/80 90/40+90/40
© everydaycalculation.com