Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 42/63 of 21/30?"
4263 × 2130 is 715.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/63×21/30 42/63×42/30 42/63×21/60 42/63×63/30 42/63×21/90
© everydaycalculation.com