Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 21/28 of 3/12?"
2128 × 312 is 316.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/28×3/12 21/28×6/12 21/56×3/12 21/28×3/24 63/28×3/12 21/28×9/12 21/84×3/12 21/28×3/36 21/28×15/12 21/28×3/60 21/28×21/12 21/28×3/84
© everydaycalculation.com