Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 20/40 of 6/21?"
2040 × 621 is 17.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/40×12/21 20/80×6/21 20/40×6/42 60/40×6/21 20/40×18/21 20/40×6/63 20/40×30/21 20/40×42/21
© everydaycalculation.com