五年级下册 分数的意义和性质（笔算）

17 = ( )42 6	12 = ( )8 4	23 = ( )12 8
1524 = 58	45 = ( )10 8	13 = ( )21 7
69 = 23	210 = 15	545 = 19
23 = ( )9 6	24 = ( )28 14	1848 = 38
1530 = 12	23 = ( )30 20	424 = 16
27 = ( )21 6	214 = 17	48 = ( )72 36
1015 = 23	27 = ( )56 16	1824 = 34
12 = ( )8 4	17 = ( )35 5	15 = ( )45 9
34 = ( )20 15	1230 = 25	37 = ( )56 24
812 = 23	1218 = 23	29 = ( )18 4
13 = ( )12 4	16 = ( )30 5	1520 = 34
34 = ( )20 15	39 = 13	13 = ( )15 5
15 = ( )25 5	432 = 18	2025 = 45
13 = ( )21 7	45 = ( )45 36	78 = ( )72 63
56 = ( )42 35	13 = ( )15 5	12 = ( )6 3
56 = ( )36 30	19 = ( )36 4	35 = ( )25 15
28 = ( )72 18	13 = ( )15 5

17 = 642	12 = 48	23 = 812
1524 = 58	45 = 810	13 = 721
69 = 23	210 = 15	545 = 19
23 = 69	24 = 1428	1848 = 38
1530 = 12	23 = 2030	424 = 16
27 = 621	214 = 17	48 = 3672
1015 = 23	27 = 1656	1824 = 34
12 = 48	17 = 535	15 = 945
34 = 1520	1230 = 25	37 = 2456
812 = 23	1218 = 23	29 = 418
13 = 412	16 = 530	1520 = 34
34 = 1520	39 = 13	13 = 515
15 = 525	432 = 18	2025 = 45
13 = 721	45 = 3645	78 = 6372
56 = 3542	13 = 515	12 = 36
56 = 3036	19 = 436	35 = 1525
28 = 1872	13 = 515