Solutions by everydaycalculation.com
1st number: 3 17/21, 2nd number: 5/10
This multiplication involving fractions can also be rephrased as "What is 80/21 of 5/10?"
8021 × 510 is 4021.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/42×5/10 80/21×5/20 80/21×15/10 80/63×5/10 80/21×5/30 80/21×25/10 80/21×5/50 80/21×35/10 80/21×5/70
© everydaycalculation.com