Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 21/72 of 3/7?"
2172 × 37 is 18.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/72×3/7 21/72×6/7 21/72×3/14 63/72×3/7 21/72×9/7 21/72×3/21 21/72×15/7 21/72×3/35 21/72×21/7 21/72×3/49
© everydaycalculation.com