Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 42/90 of 15/20?"
4290 × 1520 is 720.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/90×15/20 42/90×30/20 42/90×15/40 42/90×45/20 42/90×15/60 42/90×75/20
© everydaycalculation.com