Solutions by everydaycalculation.com

This multiplication involving fractions can also be rephrased as "What is 1/3 of 3/9?"

13 × 39 is 19.

- Simply multiply the numerators and denominators separately:
- 13 × 39 = 1 × 33 × 9 = 327
- After reducing the fraction, the answer is 19

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