五年级下册 分数的意义和性质（笔算）

28 = ( )40 10	13 = ( )9 3	12 = ( )8 4
34 = ( )20 15	56 = ( )18 15	13 = ( )12 4
12 = ( )4 2	45 = ( )35 28	45 = ( )40 32
1527 = 59	615 = 25	68 = ( )72 54
14 = ( )8 2	23 = ( )12 8	78 = ( )32 28
630 = 15	23 = ( )33 22	1518 = 56
3036 = 56	4254 = 79	636 = 16
34 = ( )28 21	39 = 13	3540 = 78
34 = ( )12 9	12 = ( )6 3	2024 = 56
1016 = 58	327 = 19	37 = ( )63 27
210 = 15	2028 = 57	68 = ( )72 54
3036 = 56	48 = ( )48 24	2430 = 45
23 = ( )24 16	15 = ( )35 7	15 = ( )40 8
78 = ( )40 35	2430 = 45	15 = ( )40 8
48 = ( )72 36	69 = ( )27 18	12 = ( )6 3
37 = ( )14 6	24 = ( )36 18	1230 = 25
79 = ( )45 35	1535 = 37

28 = 1040	13 = 39	12 = 48
34 = 1520	56 = 1518	13 = 412
12 = 24	45 = 2835	45 = 3240
1527 = 59	615 = 25	68 = 5472
14 = 28	23 = 812	78 = 2832
630 = 15	23 = 2233	1518 = 56
3036 = 56	4254 = 79	636 = 16
34 = 2128	39 = 13	3540 = 78
34 = 912	12 = 36	2024 = 56
1016 = 58	327 = 19	37 = 2763
210 = 15	2028 = 57	68 = 5472
3036 = 56	48 = 2448	2430 = 45
23 = 1624	15 = 735	15 = 840
78 = 3540	2430 = 45	15 = 840
48 = 3672	69 = 1827	12 = 36
37 = 614	24 = 1836	1230 = 25
79 = 3545	1535 = 37