六年级分数方程专项练习180(附答案)

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六年级分数方程专项练习180(附答案)

第 1 页 共 33 页

分数方程专项练习180题(有答案)

(1)+X=,

(2)X﹣=,

(3)x+x=42,

(4)=,

(5)5x﹣3×=, (6)x+=,

(7)+2x=,

(8)12÷(x+)=1.2,

(9)

(10)

第 2 页 共 33 页 (11)X×2=4×5,,

(12)X﹣X=,

(13)90×+x=20,

(14)0.2x+=8﹣x,

(15)X+(3X﹣16)÷=10(X+1),

(15)=, (16)X﹣X=1,

(17)x+x=42

(18),

(19)﹣=1,

(20)2X+1=2,

(21)﹣x=

第 3 页 共 33 页 (22)x+2=4.25

(23)x﹣(1+)=4.5

(24)37.5++x=69

(25),

(26)x=2.4×5,

(27)x﹣+=, (28)x+x=121,

(29)(x+)×7=8.1,

(30)=,

(31)4x+=5,

(32)+x=9,

(33)x﹣x=,

第 4 页 共 33 页 (34)x+x=11,

(35)2x+=4.625,

(36)﹣2X=,

(37)x﹣x=2,

(38)+21.5=x,

(39)﹣3x=, (40)+x=,

(41)x+5×4=95

(42)x﹣x=

(43)﹣3χ=,

(44)x﹣x=0.2,

(45)y﹣4﹣y=18,

第 5 页 共 33 页 (45),

(46)×3+2.75x=,

(47),

(48)5x﹣3×=,

(49)x=,

(50)x+x=39, (51)7x﹣3x=,

(52)x+=,

(53)﹣=,

(54),

(54),

(55)5x﹣=34

第 6 页 共 33 页 (56)x﹣×6=

(57)x+1.2x=25

(58)8﹣4.5x=,

(59)x﹣0.95×4=8.5,

(60)2x﹣=2+, (61)x+x=, (62)x﹣=2﹣,

(63)﹣=2.5,

(64)x=18,

(65)x﹣=,

(66)x﹣x=,

(67),

第 7 页 共 33 页 (68),

(69)x﹣x=,

(70)1.25:0.25=,

(71)1﹣x=,

(72)x+x=,

(73)x+x=42, (74)x+0.25=,

(75)x=10×,

(76)x+x=2,

(77)x×(1﹣37.5%)=,

(78)(x+)=2,

(79)x=50×,

第 8 页 共 33 页 (80)x+x=42,

(81)4+x=102,

(82)X+X=,

(83)X=,

(84)(1﹣)X=,

(85)χ﹣χ=, (86)χ=42×,

(87)8x﹣×3=,

(88)+=1,

(89)3x﹣×=50%,

(90)3x﹣x=,

(91)+x=,

第 9 页 共 33 页 (92)﹣x=×,

(93)÷x=0.8,

(94)x+5×4=95,

(95)x﹣x﹣4=18,

(96)÷ⅹ=,

(97)x×=4, (98)ⅹ=,

(99)ⅹ﹣6=7,

(100)+5x=110,

(101)x﹣4=60,

(102)x﹣x=9,

(103)x﹣x=3.6,

第 10 页 共 33 页 (104)÷x=

(105)=9.1,

(106)4(+x)=,

(107)×0.25+x=,

(108)x+x=,

(109), (110),

(111)+3x=,

(112)=,

(113)×﹣X=,

(114)x÷=30,

(115)﹣x=7,

第 11 页 共 33 页 (116)x=×10,

(117)X﹣X=6,

(118)X﹣2=13,

(119)(1﹣)X=480,

(120)6X+X=39,

(121)2.4﹣=3.2﹣x, (122),

(123),

(124)X﹣X=,

(125)6X+4.5=,

(126)80%X﹣0.6=4.2,

(127)X+X=,

第 12 页 共 33 页 (128)X+X=,

(129)÷x=,

(130)x÷=42,

(131)x+=,

(132)X﹣=,

(133)X+X=3, (134)X+=×8,

(134),

(135),

(136)x﹣7.5=,

(137)2X+=1,

(138)X÷=,

第 13 页 共 33 页 (139)X﹣X=1.5,

(140)x=28×,

(141)(x+3)×=48,

(142)x﹣=,

(143),

(144)2÷x=2, (145)3﹣4x=2,

(146)x÷=÷

(147)÷x=÷.

(148)X﹣25%X=135,

(149)X﹣12.5×4=0,

(150)x+×=1,

第 14 页 共 33 页 (151) x×(﹣)=,

(152)8×﹣1.5x=1.1,

(153)xx=2,

(154)x﹣=,

(155)x﹣x=15,

(156)X÷=, (157)(X﹣)=,

(158)X+X=×,

(159)﹣x=,

(160)x+0.75﹣=0.15,

(161)2x+=4.625,

(162)÷4.8x=15.8,

第 15 页 共 33 页 (163)x=14,

(164)x+x=2.1,

(165)2.7÷120%x=9,

(166)(13﹣X)×=6,

(167)x﹣21×=4

(168)1x+x= (168)x×(﹣)=

(169)2+x=5,

(170)4x﹣=;

(171)x÷=

(172)x﹣x=3

(173)6x﹣3.5x=÷

第 16 页 共 33 页 (174)﹣3X=

(175)

(176)5X﹣3×

(177)x××=5

(178)χ=, (179)χ+χ=, (180)x=

(181)x+15=40

(182)x÷=

专项练习参考答案:

(1)+X=,

+X﹣=﹣,

X=;

第 17 页 共 33 页 (2)X﹣=,

X﹣+=+,

X=;

(3)x+x=42,

(+)x=42,

x=42,

x×=42×,

x=36;

(4)=,

4.5x=8,

4.5x÷4.5=8÷4.5,

x=

(5)5x﹣3×=,

5x﹣,

5x,

5x÷5=,

x=0.7

(6)x+=,

x+﹣=﹣,

x=,

x÷=÷,

x=;

(7)+2x=,

+2x﹣=﹣,

2x÷2=÷2,

x=; (8)12÷(x+)=1.2,

12÷(x+)×(x+)=1.2×(x+),

1.2×(x+)=12,

1.2×(x+)÷1.2=12÷1.2,

x+﹣=10﹣,

x=9.

(9)

x=,

x÷=4÷,

x=;

(10)

3x﹣+=+,

3x÷3=÷3,

(11)X×2=4×5,,

X=20,

X×=20×,

X=15

(12)X﹣X=,

(1﹣)X=,

X=,

X×3=×3,

X=