Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 21/30 of 6/72?"
2130 × 672 is 7120.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/30×6/72 21/30×12/72 21/60×6/72 63/30×6/72 21/30×18/72 21/90×6/72 21/30×30/72 21/30×42/72
© everydaycalculation.com