Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 15/75 of 21/63?"
1575 × 2163 is 115.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/75×21/63 15/75×42/63 45/75×21/63
© everydaycalculation.com