Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 12/24 of 9/90?"
1224 × 990 is 120.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/24×18/90 12/48×9/90 36/24×9/90 12/24×27/90 12/72×9/90 60/24×9/90 12/24×45/90 84/24×9/90 12/24×63/90
© everydaycalculation.com