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5/9+1/6%1/4简便计算

5/9+1/6-1/4 =13/18-1/4 =17/36 你好,本题已解答,如果满意 请点右上角“采纳答案”。

5/9-1/4+5/4 =5/9+(5/4-1/4) =5/9+1 =14/9 希望能帮到你!

4/9-(1/4+1/5) =4/9-1/4-1/5 =3/9-1/5 =1/3-1/5 =5/15-3/15 =2/15

5/6-4/9+1/6-2/9 =(5/6+1/6)-(4/9+2/9) =1-6/9 =3/9 =1/3

9/4-1/4+1/5 =2+1/5 =2又1/5

5/6x5/9+5/9x1/6 =5/9x(5/6+1/6) =5/9x1 =5/9

(5/9-5/6+1/4)/(-1/36) =(5/6-5/9-1/4)x36 =5/6x36-5/9x36-1/4x36 =30-20-9 =1

(3/4十1/4)X5/9

括号5/9+1/13括号乘以9+4/13简便计算 解答: (5/9+1/13)x9+4/13 =5/9x9+1/13x9+4/13 =5+(9/13+4/13) =5+1 =6

4/9+1/2+1/9+1/2 =(4/9+1/9)+(1/2+1/2) =5/9+1 =1又5/9 同分母相加减:分母不变,分子相加减。 异分母相加减:先通分,然后按 同分母相加减的计算法则进行计算。 此题可以简便运算,先运用加法交换律,再运用加法结合律。

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