Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 81/90 of 12/20?"
8190 × 1220 is 2750.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/90×24/20 81/90×12/40 81/90×36/20 81/90×12/60 81/90×60/20 81/90×84/20
© everydaycalculation.com