Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 21/35 of 15/72?"
2135 × 1572 is 18.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/35×15/72 21/35×30/72 21/70×15/72 63/35×15/72 21/35×45/72 21/35×75/72
© everydaycalculation.com