Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 21/28 of 30/45?"
2128 × 3045 is 12.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/28×30/45 21/28×60/45 21/56×30/45 21/28×30/90 63/28×30/45 21/28×90/45 21/84×30/45
© everydaycalculation.com