分数乘法练习题附答案
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45
×10
21
=
3
10
×11
12
=
75
×15
21
=
45
×1
2
=
815
×9
20
=
78
×5
7
=
1415
×7
14
=
9
20
×4
5
=
1517
×17
30
=
35
×7
9
=
6
11
×5
12
=
8
11
×22
24
=
18
×7
16
=
1425
×10
11
=
16
×9
24
=
8
25
×15
24
=
319
×5
12
=
56
×9
25
=
1532
×16
45
=
79
×9
10
=
1219
×57=
4
35
×10
27
=
4
34
×12
26
=
1425
×15
36
=
1332
×5
8
=
5
18
×5
12
=
1360
×12
39
=
1415
×3
19
=
1323
×23
39
=
7
18
×2
3
=
1531
×93=
1439
×13
28
=
3245
×8=
7
15
×45=
3
17
×5
21
=
5
21
×2
15
=
2455
×11
25
=
1235
×7
18
=
6
27
×9
20
=
1363
×14
39
=
2536
×27
40
=
2
15
×4
9
=
1531
×11
35
=
1322
×66=
45
×22
3
=
3
10
×31
3
=
225
×15
21
=
45
×11
2
=
18
13
×8
21=
178
×2
5
=
145
×2
9
=
1920
×4
29
=
1517
×12
15
=
525
×7
9
=
1311
×5
12
=
8
11
×17
15
=
21
8
×7
17=
1425
×32
11
=
416
×9
25
=
4825
×15
36
=
213
19
×12
17
=
156
×11
11
=
213
×115
21
=
519
×14
5
=
212
19×38=
147
×110
11
=
649
×12
29
=
21425
×15
32
=
312
15
×5
13=
3118
×6
11
=
645
×15
33
=
4815
×10
39
=
84
9
×3
19=
3418
×9
29
=
215
31
×62=
249
×3
11
=
32
9×72=
51
5
×15=
2217
×5
21
=
512
×2
11
=
55
11
×216
25
=
234
×66
11
=
3611
×27
13
=
359
×14
5
=
25
6
×17
8
=
525
×72
9
=
623
×71
5
=
637
×23
9
=