Transcript Document 9660427
8 16 4 8 2 4 1 2 8 16 1 2 4 8 2 4 2 4 4 8 1 2 8 16 扩分 1 1 2 2 2 2 4 4 2 8 = = = = = = 2 2 2 4 4 2 8 8 2 16 约分 8 82 4 42 2 22 1 = = = = = = 16 16 2 8 8 2 4 4 2 2 红色部分是全图的几分之几? 6 12 3 6 1 2 6 12 6 12 = = 66 12 6 1 2 = 1 2 蓝色部分是全图的几分之几? 15 45 3 9 1 3 15 45 15 45 = = 1 3 15 15 45 15 = 1 3 8 10 = 82 10 2 = 4 5 6 24 = 66 24 6 = 1 4 16 2 24 ? ?3 30 ? 54 9 ?5 26 ? 52 ? 1 2