Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 8/10 of 21/70?"
810 × 2170 is 625.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/10×21/70 8/10×42/70 8/20×21/70 24/10×21/70 8/10×63/70 8/30×21/70 40/10×21/70 8/50×21/70 56/10×21/70 8/70×21/70
© everydaycalculation.com