1、 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) (
2、÷. (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. (7
3、2) (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).
4、 (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).
5、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题参照答案: (1)=﹣= (2)+﹣=++== (3)=﹣=2x+6﹣x+3=x+9 (4)=÷(﹣)=•(﹣)=﹣. (5)原式===. (6)原式=== (7)原式==x+y (8)原式=
6、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)=﹣•,
7、 =﹣==﹣ (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(
8、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
9、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+
10、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﹣
11、﹣. (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•
12、﹣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=•﹣
13、﹣= (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=÷=•=






