分数乘法练习题附答案

5

21

10

125

21

5

2

8

15×9

20=

78×57= 1415×714=

920×4

5

=

1517×1730

=

35

×79

= 611

×512

=

811×22

24=

18

×716

= 1425×10

11=

16×924

= 825

×1524

=

319

×5

12=

56

×925= 1532×16

45=

79

×910

= 1219×57= 435×10

27=

434×1226= 1425×15

36=

1332×5

8=

518×512= 1360×1239=

1415×319= 1323×23

39

=

718×23=

1531×93= 1439×13

28=

3245×8= 7

15×45= 317×5

21=

5

21×215= 2455×11

25=

1235×7

18=

627×920= 1363×1439= 2536×2740= 215

×49=

1531

×1135=

1322

×66=

45

×223=

310

×313

=

225×1521

=

45×11

2=

18

13

×821=

178

×2

5

=

145

×29

=

19

20×429

=

1517

×1215

=

525

×7

9=

13

11×512

= 811

×17

15=

21

8

×717

=

1425

×3211

=

416×9

25=

48

25×1536=

21319×12

17

=

15

6

×1111

=

213

×11521= 519

×145

= 21219

×38= 147

×110

11

=

649

×1229=

214

25

×15

32=

31215×5

13=

3118×6

11=

645

×1533

= 4815×10

39=

849×3

19

=

3418×929

= 215

31×62=

249×311=

32

9×72= 515×15= 2217×5

21

=

512

×2

11

= 55

11×216

25

=

234×66

11=

3611×27

13

=

35

9

×14

5

=

256

×17

8

=

525

×729=

623×71

5

=

637

×23

9

=

521

1012

521

52

8

15×9

20

=6/25 78×5

7

=5/8 1415×714

= 7/15 9

20×4

5

=9/25 1517×17

30=1/2

35

×79

=7/15

611

×5

12=5/22

811

×22

24=2/3

18×7

16

=7/128 1425×10

11= 28/55 1

6×9

24

=1/16 825×15

24

=1/5 3

19×5

12

=5/76 5

6×9

25

=3/10 1532×16

45

=1/6

7

9×9

10

=7/10 1219

×57=36 4

35×1027

=8/189

4

34×1226

=12/221 1425×1536

=7/30 1332×5

8

=65/256 518×512=25/216 1360×12

39

=1/15 1415×3

19=147/95 1323×23

39

=1/3

718×2

3

=7/27 1531

×93=45 14

39×13

28

=1/6 3245

×8=256/45 7

15

×45= 21 317×5

21=5/119

5

21×215

=2/63 2455×11

25

=24/125 12

35×7

18=2/15 6

27×920=1/10

13

63×1439

=2/27 2536×27

40

=15/32 2

15×4

9=8/135

15

31×1135

=33/217 1322×66=39

4

5

×22

3=32/15

310

×31

3= 1

225×15

21=12/7

4

5

×11

2=6/5 18

13×821=8/13

178×2

5=3/4 14

5×2

9=2/5 19

20×4

29=1/5

1517

×12

15=1

52

5×7

9=21/5

13

11×5

12=35/66

811

×17

15=16/15 21

8×7

17= 7/8 14

25

×3211=98/55

416×9

25= 3/2

48

25×15

36=9/5

213

19×12

17=3 15

6×11

11=2

21

3×115

21=4

51

9×14

5=46/5 21219×38=100

14

7×110

11=3 649×1229= 8/3

214

25×15

32=6/5

31215×513=57/39 31

18×6

11=5/3

645

×1533

= 102/33 48

15×1039=136/117

849×3

19=4/3 34

18×929=1 215

31×62=154

249×311=2/3 32

9×72=232

51

5×15=78 2217×521=60/119 51

2×2

11=1

55

11×21625=72/5 23

4×66

11=18

36

11×27

13=9 35

9×14

5=32/5

25

6×17

8=85/16

52

5×72

9=39

62

3×71

5=48

63

7×23

9=15