Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 21/30 of 15/42?"
2130 × 1542 is 14.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/30×15/42 21/30×30/42 21/60×15/42 21/30×15/84 63/30×15/42 21/30×45/42 21/90×15/42 21/30×75/42
© everydaycalculation.com