Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 4/12 of 15/21?"
412 × 1521 is 521.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/12×15/21 4/12×30/21 4/24×15/21 4/12×15/42 4/12×45/21 4/36×15/21 4/12×15/63 20/12×15/21 4/12×75/21 4/60×15/21 28/12×15/21 4/84×15/21
© everydaycalculation.com