Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 3/45 of 4/20?"
345 × 420 is 175.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/45×4/20 3/45×8/20 3/90×4/20 3/45×4/40 9/45×4/20 3/45×12/20 3/45×4/60 15/45×4/20 21/45×4/20 3/45×28/20
© everydaycalculation.com