Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 15/80 of 35/40?"
1580 × 3540 is 21128.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/80×35/40 15/80×70/40 15/80×35/80 45/80×35/40 75/80×35/40
© everydaycalculation.com