Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 30/90 of 4/5?"
3090 × 45 is 415.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/90×4/5 30/90×8/5 30/90×4/10 30/90×12/5 30/90×4/15 30/90×20/5 30/90×4/25 30/90×28/5 30/90×4/35
© everydaycalculation.com