Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 21/75 of 5/21?"
2175 × 521 is 115.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/75×5/21 21/75×10/21 21/75×5/42 63/75×5/21 21/75×15/21 21/75×5/63 21/75×25/21 21/75×35/21
© everydaycalculation.com