Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 28/84 of 21/30?"
2884 × 2130 is 730.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/84×21/30 28/84×42/30 28/84×21/60 28/84×63/30 28/84×21/90
© everydaycalculation.com