Solutions by everydaycalculation.com

This multiplication involving fractions can also be rephrased as "What is 20/21 of 2/10?"

2021 × 210 is 421.

- Simply multiply the numerators and denominators separately:
- 2021 × 210 = 20 × 221 × 10 = 40210
- After reducing the fraction, the answer is 421

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