Solutions by everydaycalculation.com
1st number: 4 0/7, 2nd number: 12/90
This multiplication involving fractions can also be rephrased as "What is 28/7 of 12/90?"
287 × 1290 is 815.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/7×12/90 28/7×24/90 28/14×12/90 84/7×12/90 28/7×36/90 28/21×12/90 28/7×60/90 28/35×12/90 28/7×84/90 28/49×12/90
© everydaycalculation.com