Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 21/40 of 1/20?"
2140 × 120 is 21800.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/40×1/20 21/40×2/20 21/80×1/20 21/40×1/40 63/40×1/20 21/40×3/20 21/40×1/60 21/40×5/20 21/40×7/20
© everydaycalculation.com