Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 4/24 of 21/40?"
424 × 2140 is 780.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/24×21/40 4/24×42/40 4/48×21/40 4/24×21/80 12/24×21/40 4/24×63/40 4/72×21/40 20/24×21/40 28/24×21/40
© everydaycalculation.com