Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 8/21 of 7/28?"
821 × 728 is 221.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/21×7/28 8/21×14/28 8/42×7/28 8/21×7/56 24/21×7/28 8/21×21/28 8/63×7/28 8/21×7/84 40/21×7/28 8/21×35/28 56/21×7/28 8/21×49/28
© everydaycalculation.com