2/3 * 6/7

To multiply the fractions \( \frac{2}{3} \) and \( \frac{6}{7} \), you multiply the numerators together and the denominators together:

\[ \frac{2}{3} \times \frac{6}{7} = \frac{2 \times 6}{3 \times 7} = \frac{12}{21} \]

Next, you can simplify \( \frac{12}{21} \). Both the numerator and the denominator can be divided by their greatest common divisor, which is 3:

\[ \frac{12 \div 3}{21 \div 3} = \frac{4}{7} \]

So, \( \frac{2}{3} \times \frac{6}{7} = \frac{4}{7} \).