五年级下册 分数的意义和性质（笔算）

58 = ( )72 45	68 = ( )24 18	14 = ( )28 7
46 = ( )42 28	13 = ( )15 5	1224 = 12
515 = 13	27 = ( )35 10	17 = ( )42 6
13 = ( )21 7	812 = 23	26 = ( )18 6
49 = ( )27 12	915 = 35	13 = ( )18 6
1224 = 12	13 = ( )9 3	12 = ( )6 3
67 = ( )28 24	3642 = 67	46 = ( )24 16
12 = ( )6 3	14 = ( )36 9	12 = ( )18 9
1236 = 13	29 = ( )18 4	1016 = 58
12 = ( )6 3	12 = ( )6 3	45 = ( )20 16
24 = ( )28 14	13 = ( )15 5	24 = ( )20 10
45 = ( )35 28	35 = ( )25 15	3045 = 23
12 = ( )6 3	35 = ( )45 27	13 = ( )18 6
1830 = 35	46 = ( )42 28	45 = ( )40 32
23 = ( )33 22	540 = 18	12 = ( )6 3
13 = ( )30 10	520 = 14	14 = ( )20 5
2430 = 45	1620 = 45

58 = 4572	68 = 1824	14 = 728
46 = 2842	13 = 515	1224 = 12
515 = 13	27 = 1035	17 = 642
13 = 721	812 = 23	26 = 618
49 = 1227	915 = 35	13 = 618
1224 = 12	13 = 39	12 = 36
67 = 2428	3642 = 67	46 = 1624
12 = 36	14 = 936	12 = 918
1236 = 13	29 = 418	1016 = 58
12 = 36	12 = 36	45 = 1620
24 = 1428	13 = 515	24 = 1020
45 = 2835	35 = 1525	3045 = 23
12 = 36	35 = 2745	13 = 618
1830 = 35	46 = 2842	45 = 3240
23 = 2233	540 = 18	12 = 36
13 = 1030	520 = 14	14 = 520
2430 = 45	1620 = 45