Solutions by everydaycalculation.com
1620 - 1620 is 01.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/20-16/20 16/20-32/20 16/40-16/20 16/20-16/40 48/20-16/20 16/20-48/20 16/60-16/20 16/20-16/60 80/20-16/20 16/20-80/20
© everydaycalculation.com