来自木村诚的问题
【(-10)+(+6)(+12)+(-4)(-5)+(-7)(+6)+(-9)2/5+(-3/5)(-1/3)+2/5(-31/4)+(-11/12)1/2+(-2/3)+4/5+(-1/2)+(-1/3)(+2/5)-(-3/5)(-2/5)-(-3/5)(-1/2)-1/3】
(-10)+(+6)
(+12)+(-4)
(-5)+(-7)
(+6)+(-9)
2/5+(-3/5)
(-1/3)+2/5
(-31/4)+(-11/12)
1/2+(-2/3)+4/5+(-1/2)+(-1/3)
(+2/5)-(-3/5)
(-2/5)-(-3/5)
(-1/2)-1/3
1回答
2020-06-13 17:03