Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 21/30 of 1/72?"
2130 × 172 is 7720.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/30×1/72 21/30×2/72 21/60×1/72 63/30×1/72 21/30×3/72 21/90×1/72 21/30×5/72 21/30×7/72
© everydaycalculation.com