Solutions by everydaycalculation.com
1st number: 40 0/2, 2nd number: 4/20
This multiplication involving fractions can also be rephrased as "What is 80/2 of 4/20?"
802 × 420 is 81.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/2×8/20 80/4×4/20 80/2×4/40 80/2×12/20 80/6×4/20 80/2×4/60 80/10×4/20 80/2×28/20 80/14×4/20
© everydaycalculation.com