Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 28/40 of 9/21?"
2840 × 921 is 310.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/40×9/21 28/40×18/21 28/80×9/21 28/40×9/42 84/40×9/21 28/40×27/21 28/40×9/63 28/40×45/21 28/40×63/21
© everydaycalculation.com