五年级下册 分数的意义和性质（笔算）

1045 = 29	2028 = 57	1530 = 12
14 = ( )12 3	27 = ( )56 16	28 = ( )48 12
2427 = 89	13 = ( )6 2	46 = 23
25 = ( )20 8	2454 = 49	1220 = 35
13 = ( )12 4	13 = ( )12 4	23 = ( )12 8
23 = ( )6 4	23 = ( )6 4	68 = ( )72 54
15 = ( )30 6	12 = ( )10 5	12 = ( )18 9
27 = ( )28 8	1012 = 56	218 = 19
45 = ( )35 28	49 = ( )18 8	618 = 13
12 = ( )18 9	24 = ( )36 18	1824 = 34
4254 = 79	24 = ( )16 8	1624 = 23
79 = ( )18 14	14 = ( )36 9	612 = 12
13 = ( )9 3	23 = ( )15 10	12 = ( )4 2
12 = ( )18 9	16 = ( )12 2	25 = ( )45 18
27 = ( )63 18	12 = ( )6 3	420 = 15
14 = ( )8 2	814 = 47	810 = 45
13 = ( )12 4	12 = ( )6 3

1045 = 29	2028 = 57	1530 = 12
14 = 312	27 = 1656	28 = 1248
2427 = 89	13 = 26	46 = 23
25 = 820	2454 = 49	1220 = 35
13 = 412	13 = 412	23 = 812
23 = 46	23 = 46	68 = 5472
15 = 630	12 = 510	12 = 918
27 = 828	1012 = 56	218 = 19
45 = 2835	49 = 818	618 = 13
12 = 918	24 = 1836	1824 = 34
4254 = 79	24 = 816	1624 = 23
79 = 1418	14 = 936	612 = 12
13 = 39	23 = 1015	12 = 24
12 = 918	16 = 212	25 = 1845
27 = 1863	12 = 36	420 = 15
14 = 28	814 = 47	810 = 45
13 = 412	12 = 36