Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 21/30 of 1/90?"
2130 × 190 is 7900.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/30×1/90 21/30×2/90 21/60×1/90 63/30×1/90 21/30×3/90 21/90×1/90 21/30×5/90 21/30×7/90
© everydaycalculation.com