五年级下册 分数的意义和性质（笔算）

23 = ( )18 12	1215 = 45	12 = ( )10 5
15 = ( )15 3	428 = 17	57 = ( )56 40
17 = ( )42 6	12 = ( )18 9	12 = ( )8 4
12 = ( )10 5	18 = ( )72 9	16 = ( )36 6
79 = ( )27 21	16 = ( )12 2	12 = ( )10 5
26 = 13	15 = ( )20 4	814 = 47
12 = ( )4 2	13 = ( )12 4	12 = ( )18 9
56 = ( )42 35	59 = ( )45 25	14 = ( )8 2
1214 = 67	14 = ( )36 9	13 = ( )6 2
25 = ( )40 16	49 = ( )45 20	1836 = 12
2442 = 47	26 = 13	23 = ( )30 20
23 = ( )24 16	12 = ( )18 9	59 = ( )27 15
35 = ( )30 18	15 = ( )40 8	14 = ( )20 5
23 = ( )21 14	16 = ( )42 7	58 = ( )24 15
35 = ( )40 24	13 = ( )15 5	13 = ( )12 4
16 = ( )24 4	2432 = 34	1218 = 23
921 = 37	68 = ( )72 54

23 = 1218	1215 = 45	12 = 510
15 = 315	428 = 17	57 = 4056
17 = 642	12 = 918	12 = 48
12 = 510	18 = 972	16 = 636
79 = 2127	16 = 212	12 = 510
26 = 13	15 = 420	814 = 47
12 = 24	13 = 412	12 = 918
56 = 3542	59 = 2545	14 = 28
1214 = 67	14 = 936	13 = 26
25 = 1640	49 = 2045	1836 = 12
2442 = 47	26 = 13	23 = 2030
23 = 1624	12 = 918	59 = 1527
35 = 1830	15 = 840	14 = 520
23 = 1421	16 = 742	58 = 1524
35 = 2440	13 = 515	13 = 412
16 = 424	2432 = 34	1218 = 23
921 = 37	68 = 5472