Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 21/27 of 63/84?"
2127 × 6384 is 712.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/27×63/84 21/54×63/84 63/27×63/84 21/81×63/84
© everydaycalculation.com