Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 54/70 of 28/40?"
5470 × 2840 is 2750.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/70×56/40 54/70×28/80 54/70×84/40
© everydaycalculation.com