Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 12/15 of 30/42?"
1215 × 3042 is 47.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/15×30/42 12/15×60/42 12/30×30/42 12/15×30/84 36/15×30/42 12/15×90/42 12/45×30/42 60/15×30/42 12/75×30/42 84/15×30/42
© everydaycalculation.com