Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 21/42 of 3/21?"
2142 × 321 is 114.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 21/42×6/21 21/84×3/21 21/42×3/42 63/42×3/21 21/42×9/21 21/42×3/63 21/42×15/21
© everydaycalculation.com