Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 12/30 of 20/45?"
1230 × 2045 is 845.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/30×20/45 12/30×40/45 12/60×20/45 12/30×20/90 36/30×20/45 12/30×60/45 12/90×20/45 60/30×20/45 84/30×20/45
© everydaycalculation.com