Solutions by everydaycalculation.com
4290 + 390 is 12.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/90+3/90 42/90+6/90 42/90+9/90 42/90+15/90 42/90+21/90
© everydaycalculation.com