Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 9/21 of 7/90?"
921 × 790 is 130.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/21×7/90 9/21×14/90 9/42×7/90 27/21×7/90 9/21×21/90 9/63×7/90 45/21×7/90 9/21×35/90 63/21×7/90 9/21×49/90
© everydaycalculation.com