Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 8/21 of 3/90?"
821 × 390 is 4315.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/21×3/90 8/21×6/90 8/42×3/90 24/21×3/90 8/21×9/90 8/63×3/90 40/21×3/90 8/21×15/90 56/21×3/90 8/21×21/90
© everydaycalculation.com