Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 1/2 of 4/21?"
12 × 421 is 221.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 1/2×8/21 1/4×4/21 1/2×4/42 3/2×4/21 1/2×12/21 1/6×4/21 1/2×4/63 5/2×4/21 1/2×20/21 1/10×4/21 7/2×4/21 1/2×28/21 1/14×4/21
© everydaycalculation.com