Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 21/75 of 75/84?"
2175 × 7584 is 14.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/75×75/84 63/75×75/84
© everydaycalculation.com