Solutions by everydaycalculation.com
1st number: 4 0/21, 2nd number: 6/40
This multiplication involving fractions can also be rephrased as "What is 84/21 of 6/40?"
8421 × 640 is 35.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/21×12/40 84/42×6/40 84/21×6/80 84/21×18/40 84/63×6/40 84/21×30/40 84/21×42/40
© everydaycalculation.com