五年级下册 分数的意义和性质（笔算）

13 = ( )21 7	618 = 13	1221 = 47
69 = 23	12 = ( )6 3	23 = ( )33 22
34 = ( )36 27	2436 = 23	12 = ( )6 3
12 = ( )10 5	12 = ( )10 5	23 = ( )18 12
35 = ( )20 12	46 = ( )30 20	24 = ( )20 10
13 = ( )15 5	812 = 23	618 = 13
17 = ( )14 2	1520 = 34	68 = ( )24 18
436 = 19	15 = ( )45 9	13 = ( )30 10
15 = ( )35 7	327 = 19	56 = ( )42 35
45 = ( )25 20	927 = 13	23 = ( )12 8
34 = ( )8 6	2030 = 23	23 = ( )21 14
48 = ( )40 20	921 = 37	29 = ( )36 8
515 = 13	1248 = 14	12 = ( )18 9
19 = ( )54 6	28 = ( )32 8	48 = ( )72 36
23 = ( )18 12	15 = ( )40 8	4254 = 79
1215 = 45	35 = ( )35 21	23 = ( )18 12
14 = ( )8 2	26 = ( )36 12

13 = 721	618 = 13	1221 = 47
69 = 23	12 = 36	23 = 2233
34 = 2736	2436 = 23	12 = 36
12 = 510	12 = 510	23 = 1218
35 = 1220	46 = 2030	24 = 1020
13 = 515	812 = 23	618 = 13
17 = 214	1520 = 34	68 = 1824
436 = 19	15 = 945	13 = 1030
15 = 735	327 = 19	56 = 3542
45 = 2025	927 = 13	23 = 812
34 = 68	2030 = 23	23 = 1421
48 = 2040	921 = 37	29 = 836
515 = 13	1248 = 14	12 = 918
19 = 654	28 = 832	48 = 3672
23 = 1218	15 = 840	4254 = 79
1215 = 45	35 = 2135	23 = 1218
14 = 28	26 = 1236