Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 21/30 of 3/60?"
2130 × 360 is 7200.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/30×3/60 21/30×6/60 21/60×3/60 63/30×3/60 21/30×9/60 21/90×3/60 21/30×15/60 21/30×21/60
© everydaycalculation.com