Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 21/42 of 24/60?"
2142 × 2460 is 15.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 21/42×48/60 21/84×24/60 63/42×24/60 21/42×72/60
© everydaycalculation.com