Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 15/21 of 21/35?"
1521 × 2135 is 37.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/21×21/35 15/21×42/35 15/42×21/35 15/21×21/70 45/21×21/35 15/21×63/35 15/63×21/35 75/21×21/35
© everydaycalculation.com