五年级下册 分数的意义和性质（笔算）

24 = ( )8 4	39 = 13	67 = ( )14 12
17 = ( )56 8	25 = ( )30 12	915 = 35
36 = ( )24 12	49 = ( )45 20	12 = ( )4 2
38 = ( )32 12	4254 = 79	1824 = 34
69 = ( )18 12	23 = ( )9 6	13 = ( )15 5
1035 = 27	69 = ( )45 30	612 = 12
12 = ( )4 2	12 = ( )4 2	29 = ( )36 8
25 = ( )30 12	24 = ( )36 18	48 = ( )16 8
14 = ( )16 4	13 = ( )15 5	37 = ( )21 9
78 = ( )72 63	13 = ( )24 8	428 = 17
1628 = 47	19 = ( )54 6	24 = ( )24 12
28 = ( )48 12	27 = ( )35 10	14 = ( )8 2
12 = ( )18 9	1830 = 35	37 = ( )63 27
12 = ( )8 4	34 = ( )12 9	78 = ( )72 63
24 = ( )8 4	49 = ( )45 20	14 = ( )12 3
312 = 14	1525 = 35	13 = ( )9 3
1224 = 12	2430 = 45

24 = 48	39 = 13	67 = 1214
17 = 856	25 = 1230	915 = 35
36 = 1224	49 = 2045	12 = 24
38 = 1232	4254 = 79	1824 = 34
69 = 1218	23 = 69	13 = 515
1035 = 27	69 = 3045	612 = 12
12 = 24	12 = 24	29 = 836
25 = 1230	24 = 1836	48 = 816
14 = 416	13 = 515	37 = 921
78 = 6372	13 = 824	428 = 17
1628 = 47	19 = 654	24 = 1224
28 = 1248	27 = 1035	14 = 28
12 = 918	1830 = 35	37 = 2763
12 = 48	34 = 912	78 = 6372
24 = 48	49 = 2045	14 = 312
312 = 14	1525 = 35	13 = 39
1224 = 12	2430 = 45