Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 40/90 of 15/21?"
4090 × 1521 is 2063.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/90×15/21 40/90×30/21 40/90×15/42 40/90×45/21 40/90×15/63 40/90×75/21
© everydaycalculation.com