Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 1/6 of 21/40?"
16 × 2140 is 780.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/6×21/40 1/6×42/40 1/12×21/40 1/6×21/80 3/6×21/40 1/6×63/40 1/18×21/40 5/6×21/40 1/30×21/40 7/6×21/40 1/42×21/40
© everydaycalculation.com