五年级分数混合运算题

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五年级下学期分数混合运算练习题

一、分数脱式计算题(能简算的要简算,计算结果必须是最简分数)

(1)328

554÷⨯ (2)223751415÷÷ (3)2112732⨯÷ (4)154

9845⨯÷

(5)16

134387÷⎪⎭⎫ ⎝⎛+ (6)⎪⎭⎫ ⎝⎛-÷3121154 (7)5324592181⨯+÷ (8)21

1575427⨯÷⎪⎭⎫ ⎝⎛-

(9)76657668÷-÷ (10)24

1

652143÷⎪⎭⎫ ⎝⎛-+ (11)271094102795÷

+⨯ (12)94

954343÷⎪⎭

⎫ ⎝⎛⨯- (13)32831495÷⨯ (14)724526613⨯÷ (15)631631⨯÷⨯ (16)53815387÷+÷ (17)7

2

537553÷+÷

(18)56213256⨯-÷ (19)5435432÷⨯- (20)3

24312111117⨯⎪⎭⎫ ⎝⎛-⨯

(21)5647311⨯⎪⎭⎫ ⎝

⎛⨯- (22)6532132⨯⎪⎭⎫ ⎝⎛-÷ (23)7

5

315265⨯⎥⎦⎤⎢⎣⎡⎪⎭⎫ ⎝⎛+-

(24)5214352÷-⨯ (25)89315143⨯⎪⎭⎫ ⎝⎛+- (26)8

9131241÷⨯

(27)494944÷-÷ (28)167839532÷

⎪⎭

⎝⎛⨯- (29)⎪⎭⎫ ⎝⎛+÷7253121 (30)⎪⎭⎫ ⎝⎛+÷36127191 (31)311383÷⎪⎭

⎝⎛+ (32)1177411773÷+÷

(33)9

1631451

÷⎪⎭⎫ ⎝⎛- (34)1744341741÷+⨯ (35)52753⨯

(36)433416385+⨯+ (37)16

13

16132413÷⎪⎭⎫ ⎝⎛+) (38)1811895181913-÷+⨯

(39)⎪⎭

⎫ ⎝⎛++⨯9161181144 (40)⎪⎭⎫ ⎝⎛-⨯⨯9217341 (41)⎪⎭⎫

⎝⎛+÷⎪⎭⎫ ⎝⎛-81614132

(42)76434378⨯+⨯ (43)3

1

738343⨯⎪⎭⎫ ⎝⎛++ (44)127658196⨯⨯⨯ (45)9119191918⨯+÷ (46)7

1

54751⨯+÷ (47)⎪⎭⎫ ⎝⎛--÷4121141

(48)⎪⎭

⎝⎛++⨯9161181144 (49)157211265⨯⨯ (50)1131155-÷

(51)9412774÷⨯ (52)25

9

4385⨯÷ (53)⎪⎭⎫ ⎝⎛÷÷136143561

(54)1693232167⨯+⨯ (55)81788178÷+⨯ (56)9

1

3798379237⨯-⨯+⨯ (57)10941185⨯⨯ (58)542153⨯⨯ (59)⎪⎭

⎝⎛-÷⎪⎭⎫ ⎝⎛+211211 (60)16

13

161385÷⎪⎭⎫ ⎝⎛+ (61)15412572⨯⨯ (62)41647257÷+÷

(63)24

1

813121÷⎪⎭⎫ ⎝⎛++ (64)6.0384-÷ (65)⎪⎭⎫ ⎝⎛--÷138135341

(66)5.951545.9⨯+⨯ (67)()⎥⎦

⎢⎣⎡-⨯÷25.125251 (68)374544⨯ (69)261527⨯

(70)8115173⨯ (71)9117164⨯ (72)21120122⨯ (73)415

3

2751⨯+⨯ (74)27433941⨯+⨯ (75)17653561⨯+⨯ (76)13

61851329513165⨯+⨯+⨯ (77)9117594171⨯+⨯ (78)12

176********⨯+⨯+⨯

二、解方程

(79)872141=+X (80)3112565-=÷X (81)4

1

10385=-X X

(82)5113254

=⎪⎭⎫ ⎝⎛+⨯X (83)31474=+X X (84)110

3

103=+

X

(85)525443=⨯⨯X (86)812143=-X (87)11

6

111052=÷⨯X (88)3114175=⨯⨯X (89)982153⨯=X (90)5

3

217=÷X (91)21614332+=+X X (92)103851=-X (93)61511=⎪⎭

⎝⎛+÷X (94)()81054

=-X (95)24658=÷X (96)7

42756=⨯-X

(97)8341÷=-X X (98)X X X X =⎪⎭⎫ ⎝⎛

-÷⎥⎦⎤⎢⎣

⎡⎪⎭⎫ ⎝⎛--20714153

(99)73118722431=⎪⎭

⎝⎛-⨯⎥⎦⎤⎢⎣⎡++⎪⎭⎫ ⎝⎛+X X (100)()425412=+⨯+X X

三.简便运算

(101)72+(41-72) (102)(61×83)×24 (103) 65×(52×7

1) (104)21×75+21×75 (105) 45×94-94×45 (106) 27×5

4+27÷5

(107)24×43×65 (108) 43÷81×95 (109) 2÷(4

3×98

233515515

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