Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 21/72 of 1/60?"
2172 × 160 is 71440.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/72×1/60 21/72×2/60 63/72×1/60 21/72×3/60 21/72×5/60 21/72×7/60
© everydaycalculation.com