負負得正

PTT的Ask前板大, 居然問說:



　在分數中

                                                                               

　也就是 "除" 吧

                                                                               

　也會有「負負得正」嗎

                                                                               

　如　「-1 / -2」　→　「1 / 2」　？！

                                                                               

　或　「-10 / -5」　→　「-10　÷　-5」　→　「2」　？！





my godness!!   這不是小二數學嘛?



我BO了...