Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 21/60 of 21/54?"
2160 × 2154 is 49360.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/60×21/54 21/60×42/54 63/60×21/54 21/60×63/54
© everydaycalculation.com