Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 21/90 of 1/63?"
2190 × 163 is 1270.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/90×1/63 21/90×2/63 63/90×1/63 21/90×3/63 21/90×5/63 21/90×7/63
© everydaycalculation.com