Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 1/2 of 8/21?"
12 × 821 is 421.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 1/2×16/21 1/4×8/21 1/2×8/42 3/2×8/21 1/2×24/21 1/6×8/21 1/2×8/63 5/2×8/21 1/2×40/21 1/10×8/21 7/2×8/21 1/2×56/21 1/14×8/21
© everydaycalculation.com