Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 21/63 of 25/30?"
2163 × 2530 is 518.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/63×25/30 21/63×50/30 21/63×25/60 21/63×75/30 21/63×25/90
© everydaycalculation.com