Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 21/42 of 4/70?"
2142 × 470 is 135.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 21/42×8/70 21/84×4/70 63/42×4/70 21/42×12/70 21/42×20/70 21/42×28/70
© everydaycalculation.com