Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 18/80 of 21/90?"
1880 × 2190 is 21400.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/80×21/90 18/80×42/90 54/80×21/90 18/80×63/90 90/80×21/90
© everydaycalculation.com