Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 12/60 of 3/21?"
1260 × 321 is 135.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/60×3/21 12/60×6/21 12/60×3/42 36/60×3/21 12/60×9/21 12/60×3/63 12/60×15/21 84/60×3/21
© everydaycalculation.com