Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 15/63 of 42/90?"
1563 × 4290 is 19.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/63×42/90 15/63×84/90 45/63×42/90 75/63×42/90
© everydaycalculation.com