Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 12/21 of 25/81?"
1221 × 2581 is 100567.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/21×25/81 12/21×50/81 12/42×25/81 36/21×25/81 12/21×75/81 12/63×25/81 60/21×25/81 84/21×25/81
© everydaycalculation.com