Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 20/21 of 7/72?"
2021 × 772 is 554.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/21×7/72 20/21×14/72 20/42×7/72 60/21×7/72 20/21×21/72 20/63×7/72 20/21×35/72 20/21×49/72
© everydaycalculation.com