Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 21/30 of 35/70?"
2130 × 3570 is 720.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/30×35/70 21/60×35/70 63/30×35/70 21/90×35/70
© everydaycalculation.com