Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 15/90 of 42/70?"
1590 × 4270 is 110.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/90×42/70 15/90×84/70 45/90×42/70 75/90×42/70
© everydaycalculation.com