Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 21/28 of 7/90?"
2128 × 790 is 7120.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/28×7/90 21/28×14/90 21/56×7/90 63/28×7/90 21/28×21/90 21/84×7/90 21/28×35/90 21/28×49/90
© everydaycalculation.com