Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 1/70 of 21/42?"
170 × 2142 is 1140.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/70×21/42 1/70×21/84 3/70×21/42 1/70×63/42 5/70×21/42 7/70×21/42
© everydaycalculation.com