Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 24/60 of 21/81?"
2460 × 2181 is 14135.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 48/60×21/81 24/60×42/81 72/60×21/81 24/60×63/81
© everydaycalculation.com