Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 15/21 of 5/80?"
1521 × 580 is 5112.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/21×5/80 15/21×10/80 15/42×5/80 45/21×5/80 15/21×15/80 15/63×5/80 75/21×5/80 15/21×25/80 15/21×35/80
© everydaycalculation.com