Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 1/81 of 7/20?"
181 × 720 is 71620.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/81×7/20 1/81×14/20 1/81×7/40 3/81×7/20 1/81×21/20 1/81×7/60 5/81×7/20 1/81×35/20 7/81×7/20 1/81×49/20
© everydaycalculation.com