Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 21/50 of 18/90?"
2150 × 1890 is 21250.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/50×18/90 21/50×36/90 63/50×18/90 21/50×54/90
© everydaycalculation.com