Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 6/21 of 7/21?"
621 × 721 is 221.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/21×7/21 6/21×14/21 6/42×7/21 6/21×7/42 18/21×7/21 6/63×7/21 6/21×7/63 30/21×7/21 6/21×35/21 42/21×7/21 6/21×49/21
© everydaycalculation.com