Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 1/45 of 21/72?"
145 × 2172 is 71080.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/45×21/72 1/45×42/72 1/90×21/72 3/45×21/72 1/45×63/72 5/45×21/72 7/45×21/72
© everydaycalculation.com