Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 21/30 of 45/81?"
2130 × 4581 is 718.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/30×45/81 21/30×90/81 21/60×45/81 63/30×45/81 21/90×45/81
© everydaycalculation.com