Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 21/28 of 1/5?"
2128 × 15 is 320.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/28×1/5 21/28×2/5 21/56×1/5 21/28×1/10 63/28×1/5 21/28×3/5 21/84×1/5 21/28×1/15 21/28×1/25 21/28×7/5 21/28×1/35
© everydaycalculation.com