Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 12/45 of 21/60?"
1245 × 2160 is 775.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/45×21/60 12/45×42/60 12/90×21/60 36/45×21/60 12/45×63/60 60/45×21/60 84/45×21/60
© everydaycalculation.com