五年级下册 分数的意义和性质（笔算）

23 = ( )15 10	23 = ( )30 20	23 = ( )30 20
14 = ( )20 5	79 = ( )54 42	1012 = 56
23 = ( )30 20	46 = ( )42 28	28 = ( )72 18
67 = ( )28 24	12 = ( )10 5	89 = ( )36 32
530 = 16	34 = ( )20 15	1218 = 23
23 = ( )21 14	515 = 13	2036 = 59
56 = ( )42 35	36 = ( )12 6	13 = ( )6 2
25 = ( )45 18	2836 = 79	34 = ( )36 27
24 = ( )8 4	1012 = 56	48 = ( )72 36
38 = ( )40 15	14 = ( )16 4	23 = ( )30 20
35 = ( )45 27	13 = ( )30 10	56 = ( )30 25
12 = ( )6 3	3036 = 56	78 = ( )32 28
12 = ( )6 3	56 = ( )24 20	26 = ( )42 14
23 = ( )15 10	18 = ( )32 4	69 = 23
13 = ( )33 11	35 = ( )30 18	19 = ( )36 4
68 = 34	45 = ( )30 24	13 = ( )30 10
45 = ( )30 24	57 = ( )42 30

23 = 1015	23 = 2030	23 = 2030
14 = 520	79 = 4254	1012 = 56
23 = 2030	46 = 2842	28 = 1872
67 = 2428	12 = 510	89 = 3236
530 = 16	34 = 1520	1218 = 23
23 = 1421	515 = 13	2036 = 59
56 = 3542	36 = 612	13 = 26
25 = 1845	2836 = 79	34 = 2736
24 = 48	1012 = 56	48 = 3672
38 = 1540	14 = 416	23 = 2030
35 = 2745	13 = 1030	56 = 2530
12 = 36	3036 = 56	78 = 2832
12 = 36	56 = 2024	26 = 1442
23 = 1015	18 = 432	69 = 23
13 = 1133	35 = 1830	19 = 436
68 = 34	45 = 2430	13 = 1030
45 = 2430	57 = 3042