Let's analyze each statement to determine whether it is true or false.
-
\( \frac{5}{6} \cdot \frac{3}{4} > \frac{5}{6} \):
- Calculate \( \frac{5}{6} \cdot \frac{3}{4} = \frac{5 \times 3}{6 \times 4} = \frac{15}{24} = \frac{5}{8} \).
- Since \( \frac{5}{8} < \frac{5}{6} \), this statement is false.
-
\( \frac{5}{2} \cdot \frac{7}{6} > \frac{5}{2} \):
- Calculate \( \frac{5}{2} \cdot \frac{7}{6} = \frac{5 \times 7}{2 \times 6} = \frac{35}{12} \).
- Since \( \frac{35}{12} > \frac{5}{2} = \frac{30}{12} \), this statement is true.
-
\( \frac{13}{8} \cdot \frac{4}{7} > \frac{13}{8} \):
- Calculate \( \frac{13}{8} \cdot \frac{4}{7} = \frac{13 \times 4}{8 \times 7} = \frac{52}{56} = \frac{13}{14} \).
- Since \( \frac{13}{14} < \frac{13}{8} \) (because \( \frac{13}{8} = \frac{26}{16} > \frac{13}{14} = \frac{26}{28} \)), this statement is false.
-
\( \frac{5}{2} \cdot \frac{7}{6} < \frac{5}{2} \):
- We already calculated \( \frac{5}{2} \cdot \frac{7}{6} = \frac{35}{12} \) and found it greater than \( \frac{5}{2} \).
- Thus, this statement is false.
Based on the analysis, the true statement is: \( \frac{5}{2} \cdot \frac{7}{6} > \frac{5}{2} \).