Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 4/21 of 18/30?"
421 × 1830 is 435.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/21×18/30 4/21×36/30 4/42×18/30 4/21×18/60 12/21×18/30 4/21×54/30 4/63×18/30 4/21×18/90 20/21×18/30 4/21×90/30 28/21×18/30
© everydaycalculation.com