notebook.community
Edit and run
答案:-9
答案:85
答案:-5
答案:$\frac{18}{5}$
答案:$\frac{13}{5}$
答案:$\frac{20}{7}$
答案:21
答案:$-\frac{37}{64}$
答案:-15
答案:$-\frac{12}{19}$