Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 21/90 of 15/45?"
2190 × 1545 is 790.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/90×15/45 21/90×30/45 21/90×15/90 63/90×15/45 21/90×75/45
© everydaycalculation.com