Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 9/21 of 9/15?"
921 × 915 is 935.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/21×9/15 9/21×18/15 9/42×9/15 9/21×9/30 27/21×9/15 9/21×27/15 9/63×9/15 9/21×9/45 45/21×9/15 9/21×45/15 9/21×9/75 63/21×9/15 9/21×63/15
© everydaycalculation.com