Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 4/21 of 12/60?"
421 × 1260 is 4105.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/21×12/60 4/21×24/60 4/42×12/60 12/21×12/60 4/21×36/60 4/63×12/60 20/21×12/60 28/21×12/60 4/21×84/60
© everydaycalculation.com