Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 6/40 of 6/42?"
640 × 642 is 3140.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/40×6/42 6/40×12/42 6/80×6/42 6/40×6/84 18/40×6/42 6/40×18/42 30/40×6/42 6/40×30/42 42/40×6/42
© everydaycalculation.com