Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 1/21 of 18/30?"
121 × 1830 is 135.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/21×18/30 1/21×36/30 1/42×18/30 1/21×18/60 3/21×18/30 1/21×54/30 1/63×18/30 1/21×18/90 5/21×18/30 1/21×90/30 7/21×18/30
© everydaycalculation.com