Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 4/5 of 5/21?"
45 × 521 is 421.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/5×5/21 4/5×10/21 4/10×5/21 4/5×5/42 12/5×5/21 4/5×15/21 4/15×5/21 4/5×5/63 20/5×5/21 4/5×25/21 4/25×5/21 28/5×5/21 4/5×35/21 4/35×5/21
© everydaycalculation.com