Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 21/80 of 1/90?"
2180 × 190 is 72400.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/80×1/90 21/80×2/90 63/80×1/90 21/80×3/90 21/80×5/90 21/80×7/90
© everydaycalculation.com