Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 16/40 of 6/81?"
1640 × 681 is 4135.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/40×6/81 16/40×12/81 16/80×6/81 48/40×6/81 16/40×18/81 80/40×6/81 16/40×30/81 16/40×42/81
© everydaycalculation.com