Solutions by everydaycalculation.com
770 - 4870 is -4170.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/70-48/70 7/70-96/70 21/70-48/70 35/70-48/70 49/70-48/70
© everydaycalculation.com