Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 1/21 of 42/45?"
121 × 4245 is 245.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/21×42/45 1/21×84/45 1/42×42/45 1/21×42/90 3/21×42/45 1/63×42/45 5/21×42/45 7/21×42/45
© everydaycalculation.com