Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 8/10 of 15/45?"
810 × 1545 is 415.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/10×15/45 8/10×30/45 8/20×15/45 8/10×15/90 24/10×15/45 8/30×15/45 40/10×15/45 8/10×75/45 8/50×15/45 56/10×15/45 8/70×15/45
© everydaycalculation.com