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(1):3加3/4除以3/4加三的商除以七乘1/6除以七乘1/6...

16

1÷1又1/6-8又3/4×2/7+7/18÷14/27 =6/7-5/2+3/4 =6/7-(5/2-3/4) =6/7-7/4 =-25/28

(三分之二减二分之一)除以五分之三乘以六分之五 =(2/3-1/2)÷3/5×5/6 =(4/6-3/6)×5/3×5/6 =1/6*5/3*5/6 =25/108 七分之一乘以十三分之六加十三分之八乘以七分之一 =1/7*6/13+8/13*1/7 =1/7*(4/13+8/13) =1/7*14/13 =2/13 二分之一除以五分之四...

4.483

1/6除以中括号9/17乘以括号3/4加2/3括号中括号 解: 1/6÷[9/17×(3/4+2/3)] =1/6÷(9/17×17/12) =1/6÷3/4 =2/9

1/7(3/4+3/6+6/12)=1/7×7/4=1/4

1/4×(-6/7-3 3/4)÷(-11) =1/4×(-6/7-15/4)×(-1/11) =1/4×45/14×(-1/11) =45/56×(-1/11) =-45/616

用简便方法计算 (1/27-1/36)÷1/9 =1/27÷1/9-1/36÷1/9 =1/3-1/4 =1/12 3/5×1/6+7/5÷6 =3/5×1/6+7/5×1/6 =(3/5+7/5)×1/6 =2×1/6 =1/3 7÷5×(5/7+5/28) =7/5×(5/7+5/28) =7/5×5/7+7/5×5/28 =1+1/4 =1又1/4 3/4×1/2÷3/4×2 =(3/4÷3/4)×(1/2...

你好,很高兴为你解答 1/6÷[9/17x(3/4+2/3)] =1/6÷(9/17x17/12) =1/6x4/3 =2/9(表示9分之2) 满意采纳哦!

1/1*2+1/2*3+1/3*4+1/4*5+1/5*6+1/6*7+1/7*8+1/8*9 =1-1/2+1/2-1/3+1/3-1/4+1/4-1/5+1/5-1/6+1/6-1/7+1/7-1/8+1/8-1/9 =1-1/9 =8/9

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