Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 40/54 of 21/30?"
4054 × 2130 is 1427.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/54×21/30 40/54×42/30 40/54×21/60 40/54×63/30 40/54×21/90
© everydaycalculation.com