Solutions by everydaycalculation.com

This multiplication involving fractions can also be rephrased as "What is 21/42 of 21/63?"

2142 × 2163 is 16.

- Simply multiply the numerators and denominators separately:
- 2142 × 2163 = 21 × 2142 × 63 = 4412646
- After reducing the fraction, the answer is 16

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:

Android and iPhone/ iPad

Related: ^{21}/_{42}×^{42}/_{63} ^{21}/_{84}×^{21}/_{63} ^{63}/_{42}×^{21}/_{63}

© everydaycalculation.com