【(1+1/7)-(-3)+(-1/5)】/(-1/105)
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【(1+1/7)-(-3)+(-1/5)】/(-1/105)【(1+1/7)-(-3)+(-1/5)】/(-1/105)【(1+1/7)-(-3)+(-1/5)】/(-1/105)干什么?计算吗?[(
【(1+1/7)-(-3)+(-1/5)】/(-1/105)
【(1+1/7)-(-3)+(-1/5)】/(-1/105)
【(1+1/7)-(-3)+(-1/5)】/(-1/105)
干什么?计算吗?
[(1+1/7)-(-3)+(-1/5)]/(-1/105)
=(1+1/7+3-1/5)×(-105)
=(35/35+5/35+105/35-7/35)×(-105)
=(138/35)×(-105)
=(138)×(-3)
=-414
简便运算 (1+1/3+1/5+1/7)*(1/3+1/5+1/7+1/9)-(1+1/3+1/5+1/7+1/7+1/9)*(1/3+1/5+1/7)
算术题,(1+1/3+1/5+1/7)×(1/3+1/5+1/7+1/9)-(1+1/3+1/5+1/7+1/9)×(1/3+1/5+1/7)
数奥题(1+1/3+1/5+1/7)*(1/3+1/5+1/7+1/9)-(1+1/3+1/5+1/7+1/9)*(1/3+1/5+1/7)求(1+1/3+1/5+1/7)*(1/3+1/5+1/7+1/9)-(1+1/3+1/5+1/7+1/9)*(1/3+1/5+1/7)的简便算法要求:
【(1+1/7)-(-3)+(-1/5)】/(-1/105)
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