8*(1/24+1/30)+(x-8)(1/24+1/30+1/40)=1怎样简便运算
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8*(1/24+1/30)+(x-8)(1/24+1/30+1/40)=1怎样简便运算8*(1/24+1/30)+(x-8)(1/24+1/30+1/40)=1怎样简便运算8*(1/24+1/30)+
8*(1/24+1/30)+(x-8)(1/24+1/30+1/40)=1怎样简便运算
8*(1/24+1/30)+(x-8)(1/24+1/30+1/40)=1怎样简便运算
8*(1/24+1/30)+(x-8)(1/24+1/30+1/40)=1怎样简便运算
提取公因式
左边=（1/24+1/30）(x-8+8)+(x-8)*(1/40)
再算
1/6+1/24+1/60+1/40 = 20/120+5/120+2/120+3/120=30/120=0.25 解释一下：你先找出这几个分数的分母的最小公倍数，得出120（最小公倍数不
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