Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 1/21 of 7/21?"
121 × 721 is 163.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/21×7/21 1/21×14/21 1/42×7/21 1/21×7/42 3/21×7/21 1/63×7/21 1/21×7/63 5/21×7/21 1/21×35/21 7/21×7/21 1/21×49/21
© everydaycalculation.com