Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 21/35 of 18/63?"
2135 × 1863 is 635.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/35×18/63 21/35×36/63 21/70×18/63 63/35×18/63 21/35×54/63 21/35×90/63
© everydaycalculation.com