Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 18/21 of 7/9?"
1821 × 79 is 23.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/21×7/9 18/21×14/9 18/42×7/9 18/21×7/18 54/21×7/9 18/21×21/9 18/63×7/9 18/21×7/27 90/21×7/9 18/21×35/9 18/21×7/45 18/21×49/9 18/21×7/63
© everydaycalculation.com