Problem
2. What is the value of the expression $6 \frac{3}{4}(-11.5)$ ? F $77 \frac{5}{8}$ G $69 \frac{3}{4}$ H $\quad-77 \frac{5}{8}$ J $-69 \frac{3}{4}$
Solution
Step 1 ：Convert $6 \frac{3}{4}$ into a decimal, which is 6.75.
Step 2 ：Calculate the product of 6.75 and -11.5, which is -77.625.
Step 3 ：Convert -77.625 into a mixed number, which is $-77 \frac{5}{8}$.
Step 4 ：\(\boxed{-77 \frac{5}{8}}\) is the final answer.
