Solutions by everydaycalculation.com
1st number: 1 1/20, 2nd number: 4/21
This multiplication involving fractions can also be rephrased as "What is 21/20 of 4/21?"
2120 × 421 is 15.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/20×4/21 21/20×8/21 21/40×4/21 21/20×4/42 63/20×4/21 21/20×12/21 21/60×4/21 21/20×4/63 21/20×20/21 21/20×28/21
© everydaycalculation.com