Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 15/21 of 6/42?"
1521 × 642 is 549.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/21×6/42 15/21×12/42 15/42×6/42 15/21×6/84 45/21×6/42 15/21×18/42 15/63×6/42 75/21×6/42 15/21×30/42
© everydaycalculation.com