Solutions by everydaycalculation.com

This multiplication involving fractions can also be rephrased as "What is 4/90 of 5/10?"

490 × 510 is 145.

- Simply multiply the numerators and denominators separately:
- 490 × 510 = 4 × 590 × 10 = 20900
- After reducing the fraction, the answer is 145

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