Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 6/63 of 7/81?"
663 × 781 is 2243.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/63×7/81 6/63×14/81 18/63×7/81 6/63×21/81 30/63×7/81 6/63×35/81 42/63×7/81 6/63×49/81
© everydaycalculation.com