Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 21/28 of 8/20?"
2128 × 820 is 310.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/28×8/20 21/28×16/20 21/56×8/20 21/28×8/40 63/28×8/20 21/28×24/20 21/84×8/20 21/28×8/60 21/28×40/20 21/28×56/20
© everydaycalculation.com