Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 9/10 of 18/80?"
910 × 1880 is 81400.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/10×18/80 9/10×36/80 9/20×18/80 27/10×18/80 9/10×54/80 9/30×18/80 45/10×18/80 9/10×90/80 9/50×18/80 63/10×18/80 9/70×18/80
© everydaycalculation.com