To multiply 6 by \(2 \frac{1}{7}\), we first convert the mixed number \(2 \frac{1}{7}\) into an improper fraction.
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Convert \(2 \frac{1}{7}\) into an improper fraction: \[ 2 \frac{1}{7} = \frac{2 \times 7 + 1}{7} = \frac{14 + 1}{7} = \frac{15}{7} \]
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Now multiply by 6: \[ 6 \times \frac{15}{7} = \frac{6 \times 15}{7} = \frac{90}{7} \]
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Convert \(\frac{90}{7}\) into a mixed number. To do this, divide 90 by 7:
- 90 รท 7 = 12 remainder 6, which gives us: \[ \frac{90}{7} = 12 \frac{6}{7} \]
So, the product of \(6 \times 2 \frac{1}{7}\) is \(12 \frac{6}{7}\).
The correct response is \(12 \frac{6}{7}\).