分式混合运算专项练习158题有答案26页Word文档格式.docx

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分式混合运算专项练习158题有答案26页Word文档格式.docx

(34)

(35)

(36)

(37)

(38)

(39)

(40).

(41)

(42)

(43)

(44)(﹣)÷

 

(45)

(46) 

(47)+

(48)

(49)

(50).

(51)

(52).

(53)

(54).

(55)÷

(56)1﹣÷

(57)

(58)

(59)÷

(60)

(61).

(62)

(63).

(64)(+1)÷

(1﹣)

(65)

(66)•﹣÷

(67)

(68).

(69)

(70)[﹣(﹣x﹣y)]÷

(71)﹣÷

x.

(72)

(73)

(74)÷

(x+3)•

(75)(a﹣)÷

(76)()÷

•(2﹣x)2

(77)•(﹣)2

(78)

(79)

(80)

(81)

(82)

(83)

(84)

(85)

(86)

(87)

(88).

(89)

(90).

(91)

(92).

(93)[+÷

(+)2]•

(94)

(95)

(96)

(97)

(98)

(99)x﹣

(100)

(101)

(102).

(103).

(104)

(105).

(106)(x2﹣y2)•÷

(107)+﹣ 

(108).

(109)÷

﹣. 

(110)

(111). 

(112).

(113)

(114). 

(115).

(116)

(117)

(118)

(119)

(120)(x2y﹣1)﹣3•(﹣x﹣2)﹣3÷

(xy)﹣1.

(121)

(122)(﹣)•.

(123)

(124).

(125).

(126).

(127). 

(128).

(129)﹣  

(130)

(131)1﹣÷

(132)(﹣)3÷

•(﹣)2

(133). 

(134)

(135). 

(136).

(137)

(138). 

(139)

(140).

(141).

(142)

(143).

(144).

(145).

(146).

(147)

(148)     

(149).

(150)

(151)

(152)

(153).

(154)

(155)

(156).

(157)

(158).

分式混合运算158题参考答案:

(1)=﹣=

(2)+﹣=++==

(3)=﹣=2x+6﹣x+3=x+9

(4)=÷

(﹣)=•(﹣)=﹣.

(5)原式===.

(6)原式===

(7)原式==x+y

(8)原式==a﹣1

(9)原式==y﹣3

(10)=

=3(x+2)﹣(x﹣2)=3x+6﹣x+2=2x+8.

(11)原式==

(12)原式==(﹣1)==

(13)解:

原式==

(14)解:

原式==

(15)原式=÷

=••

=.

(16)原式=•

=﹣=﹣=.

(17)原式===. 

(18)=

==﹣y.

(19)原式==1﹣==

(20)原式===.

(21)原式=×

×

(22)原式==

(23)原式==﹣1

(24)原式===

(25)=+﹣=,

===

(26)=﹣••=﹣

(27)=﹣•,

=﹣==﹣

(28),

=(﹣)•,

=﹣,

=,

=﹣.

(29)原式==(a+1)﹣(a﹣1)=2

(30)原式=

(31)原式==

(32)原式==.

(33)()÷

=•=

(34)原式===.

(35)原式=•(a﹣1)2=a﹣1.

(36)原式=×

=

(37)原式=×

(38)原式=×

==

(39)原式==a4b

(40)原式==

(41)=×

=2(m﹣3)﹣(m+3)=m﹣9.

(42)原式==﹣.

(43)原式=﹣+=1﹣x+x2=x2﹣x+1.

(44)原式=(﹣)×

(45)原式===3(1+x)

(46)原式==.

(47)原式=×

+=+=.

(48)原式=﹣==

(49)原式=••=.

(50)原式=====.

(51)原式=====

(52)原式===.

(53)原式==

(54)原式=×

=

(55)原式=•=

(56)原式=1﹣=1﹣==.

(57) 原式=﹣÷

(58)原式=×

(59)原式=÷

(﹣)=÷

=. 

(60)原式=﹣===﹣

(61)原式=﹣•=﹣==.

(62)原式=

(63)原式=×

(m+n)(m﹣n)=(m+n)2.

(64)原式=÷

(65)原式=﹣×

=﹣=. 

(66)原式=×

﹣×

=﹣==.

(67)原式==0

(68)原式=+=

(69)原式=(×

(70)=.

(71)===. 

(72)原式===

(73)原式=﹣+==

==

(74)原式=×

(75)原式=×

(76)原式=[﹣]×

•(2﹣x)2=×

•(2﹣x)2=

(77)原式=×

= 

(78)原式===.

(79)=﹣+,

(80),

=•=﹣

(81)原式==

(82)原式==

(83)原式=×

(84)原式=+﹣==.

(85)原式=(x+1)(x﹣1)(﹣﹣),

=x+1﹣x+1﹣(x+1)(x﹣1)=﹣x2+3.

(86)原式=﹣×

=﹣=0.

(87)原式=÷

(﹣)=.

(88)原式=(﹣)÷

(89)原式=﹣×

(m﹣1)=﹣=﹣.

(90)

===

(91)原式=

(92)原式=.

(93)原式=[+×

=[+]×

(94) 原式==.

(95)原式=(x+y)•﹣==x+y

(96)原式==

(97)原式=••=

(98)原式=•+•=+==

(99)原式==

(100)原式===. 

(101)原式=﹣===

(102)原式=•=•=.

(103)原式=1﹣×

=1﹣=﹣.

(104)=×

(105)=×

=x.

(106)原式=(x+y)(x﹣y)×

=y

(107)原式=﹣﹣

=﹣﹣

==

(108)

=••==.

(109)原式=•﹣=﹣

== 

(110)=+

=+﹣

(111)=﹣+=﹣+1=1.

(112)原式=+•=+==1. 

(113)原式=﹣==

(114)原式=•

=•=•=y+9

(115)原式=1﹣•=1﹣===﹣

(116)原式==x﹣y.

(117)原式==

(118)原式===

(119)原式==

==﹣

(120)原式=x﹣6y3•(﹣x6)÷

x﹣1y﹣1=﹣y3÷

x﹣1y﹣1=﹣xy4

(121)原式=++==﹣

(122)原式=(﹣)•=3(x+2)﹣(x﹣2)=3x+6﹣x+2=2x+8

(123)原式=•=•=x﹣2

(124)原式=1﹣÷

[﹣]=1﹣÷

=1﹣•=1﹣

==﹣. 

(125)原式=﹣×

(126)原式=[﹣]÷

=[﹣]×

x

x=﹣.

(127)原式=[]÷

=[﹣]÷

 (128)原式=[]•

=•=y+9.

(129)原式==

(130)原式==0

(131)原式=1﹣=.

(132)原式=﹣••=﹣

(133)原式=•﹣=﹣=

(134)原式=••=

(135)原式=[﹣]•=[﹣]•

=•=

(136)原式==﹣= 

(137)=

(138)=,

==.

(139)=•=(x+y)(x﹣y)=x2﹣y2

(140)=++

===

(141)原式==

(142)原式====2

(143)原式=÷

=•=.

(144)原式=÷

=•=. 

(145)原式=4a﹣1﹣+=﹣== 

(146)原式=×

+=+==1.

(147)==﹣

(148)原式=+•=+=﹣=﹣

(149)原式===0 

(150)原式=•=

(151)原式=•=

(152)原式=﹣===﹣

(153)原式=[﹣]•=•

(154)原式===

(155)原式=•=

(156)原式=﹣a2b6••=﹣b5

(157)原式===﹣(x+y)=﹣x﹣y

(158)原式=÷

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