递等式计算。(能简算的要简算)。有三小题。急需啊!~!快。要计算过程,因为是递等式。满意答案给分。

2024-12-22 15:02:45
推荐回答(3个)
回答1:

5×十七分之二×3×二十八分之一
=10/17×3/28
=15/238

(六分之五加15%)×24
= 5/6×24+15%×24
=20+3.6
=23.6

(1-75%)÷(1+四分之一)
=1/4÷5/4
=1/5

回答完毕

回答2:

5×十七分之二×3×二十八分之一
=10/17x3/28
=15/238

(六分之五加15%)×24
=5/6x24+3/20x24
=20+18/5
=23.6

(1-75%)÷(1+四分之一)

=1/4÷5/4
=1/5

回答3:

  1.  5×2/17×3×1/28

    =(5×3×2)/(17×14×2)

    =(5×3)/(17×14)

    =15/238

  2. (5/6+15%)×24 

    =5/6×24+3/20×24 

    =20+36/10

    =23.6

  3. (1-75%)÷(1+1/4)

    =25%÷5/4

    =1/4×4/5

    =1/5