Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 21/63 of 6/60?"
2163 × 660 is 130.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/63×6/60 21/63×12/60 21/63×18/60 21/63×30/60 21/63×42/60
© everydaycalculation.com