Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 21/42 of 18/70?"
2142 × 1870 is 970.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 21/42×36/70 21/84×18/70 63/42×18/70 21/42×54/70 21/42×90/70
© everydaycalculation.com