Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 24/60 of 21/63?"
2460 × 2163 is 215.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 48/60×21/63 24/60×42/63 72/60×21/63
© everydaycalculation.com