Solutions by everydaycalculation.com

This multiplication involving fractions can also be rephrased as "What is 8/21 of 49/90?"

821 × 4990 is 28135.

- Simply multiply the numerators and denominators separately:
- 821 × 4990 = 8 × 4921 × 90 = 3921890
- After reducing the fraction, the answer is 28135

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