Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 21/60 of 7/10?"
2160 × 710 is 49200.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/60×7/10 21/60×14/10 21/60×7/20 63/60×7/10 21/60×21/10 21/60×7/30 21/60×35/10 21/60×7/50 21/60×49/10 21/60×7/70
© everydaycalculation.com