Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 15/30 of 21/90?"
1530 × 2190 is 760.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 15/30×42/90 15/60×21/90 45/30×21/90 15/30×63/90 15/90×21/90 75/30×21/90
© everydaycalculation.com