Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 21/42 of 75/90?"
2142 × 7590 is 512.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 21/84×75/90 63/42×75/90
© everydaycalculation.com