Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 12/21 of 45/70?"
1221 × 4570 is 1849.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/21×45/70 12/21×90/70 12/42×45/70 36/21×45/70 12/63×45/70 60/21×45/70 84/21×45/70
© everydaycalculation.com