Solutions by everydaycalculation.com
190 - 1590 is -745.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/90-15/90 1/90-30/90 3/90-15/90 1/90-45/90 5/90-15/90 1/90-75/90 7/90-15/90
© everydaycalculation.com