Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 21/54 of 5/21?"
2154 × 521 is 554.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/54×5/21 21/54×10/21 21/54×5/42 63/54×5/21 21/54×15/21 21/54×5/63 21/54×25/21 21/54×35/21
© everydaycalculation.com