Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 40/45 of 21/36?"
4045 × 2136 is 1427.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/45×21/36 40/45×42/36 40/90×21/36 40/45×21/72 40/45×63/36
© everydaycalculation.com