Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 15/21 of 1/5?"
1521 × 15 is 17.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/21×1/5 15/21×2/5 15/42×1/5 15/21×1/10 45/21×1/5 15/21×3/5 15/63×1/5 15/21×1/15 75/21×1/5 15/21×1/25 15/21×7/5 15/21×1/35
© everydaycalculation.com