Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 1/21 of 15/45?"
121 × 1545 is 163.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/21×15/45 1/21×30/45 1/42×15/45 1/21×15/90 3/21×15/45 1/63×15/45 5/21×15/45 1/21×75/45 7/21×15/45
© everydaycalculation.com