Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 21/40 of 70/81?"
2140 × 7081 is 49108.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/40×70/81 21/80×70/81 63/40×70/81
© everydaycalculation.com