Solutions by everydaycalculation.com
120 - 1820 is -1720.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/20-18/20 1/20-36/20 1/40-18/20 1/20-18/40 3/20-18/20 1/20-54/20 1/60-18/20 1/20-18/60 5/20-18/20 1/20-90/20 7/20-18/20
© everydaycalculation.com