五年级下册 分数的意义和性质（笔算）

1830 = 35	39 = 13	35 = ( )25 15
13 = ( )30 10	1218 = 23	2832 = 78
12 = ( )18 9	1836 = 12	812 = 23
12 = ( )4 2	918 = 12	68 = ( )40 30
23 = ( )12 8	23 = ( )21 14	34 = ( )20 15
3042 = 57	13 = ( )18 6	12 = ( )10 5
34 = ( )20 15	1025 = 25	23 = ( )15 10
412 = 13	13 = ( )18 6	39 = ( )18 6
1014 = 57	14 = ( )20 5	15 = ( )40 8
69 = ( )54 36	12 = ( )10 5	17 = ( )14 2
416 = 14	12 = ( )18 9	45 = ( )40 32
642 = 17	23 = ( )21 14	58 = ( )16 10
23 = ( )15 10	23 = ( )12 8	1015 = 23
39 = 13	540 = 18	47 = ( )42 24
13 = ( )6 2	324 = 18	14 = ( )36 9
28 = ( )32 8	34 = ( )24 18	14 = ( )28 7
24 = ( )12 6	34 = ( )28 21

1830 = 35	39 = 13	35 = 1525
13 = 1030	1218 = 23	2832 = 78
12 = 918	1836 = 12	812 = 23
12 = 24	918 = 12	68 = 3040
23 = 812	23 = 1421	34 = 1520
3042 = 57	13 = 618	12 = 510
34 = 1520	1025 = 25	23 = 1015
412 = 13	13 = 618	39 = 618
1014 = 57	14 = 520	15 = 840
69 = 3654	12 = 510	17 = 214
416 = 14	12 = 918	45 = 3240
642 = 17	23 = 1421	58 = 1016
23 = 1015	23 = 812	1015 = 23
39 = 13	540 = 18	47 = 2442
13 = 26	324 = 18	14 = 936
28 = 832	34 = 1824	14 = 728
24 = 612	34 = 2128