Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 21/24 of 42/81?"
2124 × 4281 is 49108.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/24×42/81 21/24×84/81 21/48×42/81 63/24×42/81 21/72×42/81
© everydaycalculation.com