Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 30/45 of 21/60?"
3045 × 2160 is 730.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/45×21/60 30/45×42/60 30/90×21/60 90/45×21/60 30/45×63/60
© everydaycalculation.com