Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 21/36 of 18/21?"
2136 × 1821 is 12.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/36×18/21 21/36×36/21 21/72×18/21 21/36×18/42 63/36×18/21 21/36×54/21 21/36×18/63 21/36×90/21
© everydaycalculation.com