負八減 [十二又二分之一減(負七加十六又四分之一)]
Thx~
更新1:
I have the correct answer , it's -11 and 1/4. BUT I don't know how to 計算.
更新2:
Thx very much !!!
更新3:
How to answer " What kind of films do you like ? " in complete sentences ?