Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 9/40 of 9/90?"
940 × 990 is 9400.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/40×9/90 9/40×18/90 9/80×9/90 27/40×9/90 9/40×27/90 45/40×9/90 9/40×45/90 63/40×9/90 9/40×63/90
© everydaycalculation.com