(-1/42)除以(1/6-3/14+2/3-2/7)=多少?还有1又3分之一-7/12+9/20-11/30+13/42-15/56+17/72=多少

(-1)的2012次方+(-3)的平方除以│-4又二分之一│-4的平方除以(-2的平方)=多少?

(-1/42)除以(1/6-3/14+2/3-2/7)
=-1÷(42×1/6-42×3/14+42×2/3-42×2/7)
=-1÷(7-9+28-12)
=-1÷14
=-1/14
1又3分之一-7/12+9/20-11/30+13/42-15/56+17/72
=1+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
=1又1/9
(-1)的2012次方+(-3)的平方除以│-4又二分之一│-4的平方除以(-2的平方)
=1+9÷4.5-16÷(-4)
=1+2+4
=7
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(-1\/42)除以(1\/6-3\/14+2\/3-2\/7)=多少?还有1又3分之一-7\/12+9\/20-11...
(-1\/42)除以(1\/6-3\/14+2\/3-2\/7)=-1÷(42×1\/6-42×3\/14+42×2\/3-42×2\/7)=-1÷(7-9+28-12)=-1÷14 =-1\/14 1又3分之一-7\/12+9\/20-11\/30+13\/42-15\/56+17\/72 =1+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\/...

(-1\/42)÷(1\/6-3\/14+2\/3-2\/7)= 求过程
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(负四十二分之一)除以(负六分之一减十四分之三加三分之二减七分之...
您好:(负四十二分之一)除以(负六分之一减十四分之三加三分之二减七分之三)=1÷(1\/6x42+3\/14x42-2\/3x42+3\/7x42)=1÷(7+9-28+18)=1÷6 =1\/6 如果本题有什么不明白可以追问,如果满意请点击右下角“采纳为满意回答”如果有其他问题请采纳本题后,另外发并点击我的头像向我...

[-(1\/42)]\/(1\/6-3\/14+2\/3-2\/7)的简算
解法一:原式=(-1\/42)÷【1\/6+2\/3-(3\/14+2\/7)】=(-1\/42)÷1\/3=-1\/14 解法二:原式=(1\/6-3\/14+2\/3-2\/7)÷(-1\/42)=(1\/6-3\/14+2\/3-2\/7)×(-42)=-14 固原式=-1\/14 you knou?我很爱你的!

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(-1\/42)除以(1\/6-3\/14+2\/3-2\/7)
(-1\/42)÷(1\/6+2\/3-3\/143-2\/7)=(-1\/42)÷(5\/6-3\/14-2\/7)=(-1\/42)÷[5\/6-(3\/14+2\/7)=(-1\/42)÷[5\/6-1\/2]=(-1\/42)÷1\/3 =(-1\/42)×3 =-1\/14

用简便方法计算,(-1\/42)\/(1\/6-3\/14+2\/3-2\/7)
(-1\/42)\/(1\/6-3\/14+2\/3-2\/7)=(-1\/42)\/(1\/6+2\/3-3\/14-2\/7)=(-1\/42)\/[(1\/6+2\/3)-(3\/14+2\/7)]=(-1\/42)\/[5\/6-1\/2]=(-1\/42)\/[1\/3]=-1\/42*3 =-1\/14

(负四十二分之一)÷(六分之一减十四分之三+三分之二减七分之二)?
先算括号里的,通分之后相加减,再根据除以一个数等于乘以它的倒数计算结果。

(-1\/42)÷(1\/(6 )-3\/14+2\/3-2\/7)
=(-1\/42)÷(1\/(6 )+2\/3-(3\/14+2\/7))=(-1\/42)÷(1\/(6 )+2\/3-1\/2)=(-1\/42)÷1\/3 -1\/14

选择合适的方法计算:(-1\/42)÷(1\/6-3\/14+2\/3-2\/7).
(-1\/42)÷(1\/6-3\/14+2\/3-2\/7)=(-1\/42)\/[1\/6+4\/6-(3\/14+2\/7)]=(-1\/42)\/[5\/6-1\/2)]=(-1\/42)\/(1\/3)=-1\/42*3 =-1\/14

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