Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 36/40 of 21/54?"
3640 × 2154 is 720.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/40×21/54 36/40×42/54 36/80×21/54 36/40×63/54
© everydaycalculation.com