Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 12/21 of 24/30?"
1221 × 2430 is 1635.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/21×24/30 12/21×48/30 12/42×24/30 12/21×24/60 36/21×24/30 12/21×72/30 12/63×24/30 12/21×24/90 60/21×24/30 84/21×24/30
© everydaycalculation.com