Solutions by everydaycalculation.com
1st number: 3 18/21, 2nd number: 21/30
This multiplication involving fractions can also be rephrased as "What is 81/21 of 21/30?"
8121 × 2130 is 2710.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/21×42/30 81/42×21/30 81/21×21/60 81/21×63/30 81/63×21/30 81/21×21/90
© everydaycalculation.com