www.crsh.net > 括号九分之四加23分之九括号乘二加二十三分之五怎么简便计算

括号九分之四加23分之九括号乘二加二十三分之五怎么简便计算

首先根号下的X分之X减1括号减1即(x-1/x)-1≥0 -1/x≥0且x≠0

(3/4-3/16)×(2/9+1/3) =9/16×5/9 =5/16

5/4×(7/9+4/15) =5/4×7/9+5/4×4/15 =35/36+1/3 =35

妈打电话了。

3分之2×4分之1×3 =3分之2×3×4分之1 =2×4分之1 =2分之1 (9分之8

  (1/4+2/9)×3.6   =1/4×3.6+2/9×3.6   =0.9+0.8  

(4/9+6/7+5/21)÷(2/9+3/7+5/42) =【2×(2/9+3/7+5/42)】÷

二分之一,除以五分之四除以括号九分之二乘以八分之三括号,这个可以简便吗? 1/2÷4/5÷(2/9

(4/9+2/3-5/27)x27 =4/9x27+2/3x27-5/27x27 =12+18-

简便计算 5/8-1/4×(8/9÷2/3) =5/8-1/4×4/3 =5/8-1/3 =

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