五年级下册 分数的意义和性质（笔算）

2436 = 23	24 = ( )28 14	2025 = 45
45 = ( )10 8	15 = ( )20 4	12 = ( )6 3
13 = ( )12 4	38 = ( )72 27	812 = 23
34 = ( )20 15	1040 = 14	17 = ( )28 4
49 = ( )18 8	38 = ( )24 9	67 = ( )56 48
45 = ( )15 12	420 = 15	2430 = 45
34 = ( )12 9	45 = ( )30 24	35 = ( )30 18
12 = ( )12 6	1521 = 57	621 = 27
642 = 17	23 = ( )33 22	48 = 12
26 = ( )12 4	520 = 14	315 = 15
12 = ( )4 2	13 = ( )33 11	15 = ( )40 8
23 = ( )24 16	2530 = 56	12 = ( )18 9
23 = ( )33 22	13 = ( )30 10	45 = ( )45 36
3036 = 56	630 = 15	15 = ( )40 8
1224 = 12	39 = ( )36 12	23 = ( )21 14
26 = ( )18 6	78 = ( )32 28	45 = ( )30 24
45 = ( )30 24	23 = ( )33 22

2436 = 23	24 = 1428	2025 = 45
45 = 810	15 = 420	12 = 36
13 = 412	38 = 2772	812 = 23
34 = 1520	1040 = 14	17 = 428
49 = 818	38 = 924	67 = 4856
45 = 1215	420 = 15	2430 = 45
34 = 912	45 = 2430	35 = 1830
12 = 612	1521 = 57	621 = 27
642 = 17	23 = 2233	48 = 12
26 = 412	520 = 14	315 = 15
12 = 24	13 = 1133	15 = 840
23 = 1624	2530 = 56	12 = 918
23 = 2233	13 = 1030	45 = 3645
3036 = 56	630 = 15	15 = 840
1224 = 12	39 = 1236	23 = 1421
26 = 618	78 = 2832	45 = 2430
45 = 2430	23 = 2233