分式混合运算专项练习158题有答案26页.docx
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分式混合运算专项练习158题有答案26页
分式混合运算专项练习158题(有答案)
(1)
(2)+﹣
(3)
(4)
(5)(﹣)•÷(+)
(6).
(7)
(8)
(9)
(10).
(11)
(12).
(13)•÷
(14)(﹣)÷.
(15)
(16)
(17)(1+)÷
(18)
(19)
(20)()2•+÷
(21)
(22)
(23)
(24)
(25)
(26)
(27)
(28).
(29)
(30).
(31)
(32)֥.
(33)()÷.
(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=[﹣]ו(2﹣x)2=ו(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=÷=•=