五年级下册 分数的意义和性质（笔算）

13 = ( )15 5	89 = ( )27 24	69 = 23
45 = ( )35 28	23 = ( )30 20	48 = 12
15 = ( )30 6	14 = ( )8 2	1418 = 79
13 = ( )12 4	45 = ( )30 24	57 = ( )21 15
1214 = 67	615 = 25	12 = ( )6 3
14 = ( )8 2	23 = ( )6 4	48 = ( )32 16
15 = ( )40 8	56 = ( )12 10	1624 = 23
1040 = 14	34 = ( )36 27	1220 = 35
23 = ( )12 8	810 = 45	1014 = 57
1216 = 34	57 = ( )56 40	1836 = 12
23 = ( )30 20	812 = 23	13 = ( )21 7
45 = ( )30 24	3054 = 59	26 = ( )24 8
26 = ( )24 8	68 = 34	12 = ( )10 5
25 = ( )45 18	12 = ( )8 4	13 = ( )12 4
23 = ( )21 14	48 = 12	14 = ( )36 9
45 = ( )30 24	69 = 23	24 = ( )16 8
615 = 25	12 = ( )4 2

13 = 515	89 = 2427	69 = 23
45 = 2835	23 = 2030	48 = 12
15 = 630	14 = 28	1418 = 79
13 = 412	45 = 2430	57 = 1521
1214 = 67	615 = 25	12 = 36
14 = 28	23 = 46	48 = 1632
15 = 840	56 = 1012	1624 = 23
1040 = 14	34 = 2736	1220 = 35
23 = 812	810 = 45	1014 = 57
1216 = 34	57 = 4056	1836 = 12
23 = 2030	812 = 23	13 = 721
45 = 2430	3054 = 59	26 = 824
26 = 824	68 = 34	12 = 510
25 = 1845	12 = 48	13 = 412
23 = 1421	48 = 12	14 = 936
45 = 2430	69 = 23	24 = 816
615 = 25	12 = 24