Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 45/80 of 5/81?"
4580 × 581 is 5144.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/80×5/81 45/80×10/81 45/80×15/81 45/80×25/81 45/80×35/81
© everydaycalculation.com