Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 21/70 of 35/60?"
2170 × 3560 is 740.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/70×35/60 21/70×70/60 63/70×35/60
© everydaycalculation.com