Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 6/60 of 21/90?"
660 × 2190 is 7300.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/60×21/90 6/60×42/90 18/60×21/90 6/60×63/90 30/60×21/90 42/60×21/90
© everydaycalculation.com