[Script Info]
Title: 
[Events]
Format: Layer, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, Text
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,0.8就是8/10 再化简得4/5
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,8除以2是4 10除以2是5
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,这样就做完了
Dialogue: 0,0:00:02.76,0:00:04.63,Default,,0000,0000,0000,,下面把0.8化成分数
Dialogue: 0,0:00:04.63,0:00:07.54,Default,,0000,0000,0000,,这个8是在十分位
Dialogue: 0,0:00:07.54,0:00:10.29,Default,,0000,0000,0000,,十分位上的8
Dialogue: 0,0:00:10.29,0:00:16.58,Default,,0000,0000,0000,,就是十分之八
Dialogue: 0,0:00:16.58,0:00:20.01,Default,,0000,0000,0000,,就可以写成8/10
Dialogue: 0,0:00:20.01,0:00:23.32,Default,,0000,0000,0000,,现在已经是分数的形式了
Dialogue: 0,0:00:23.32,0:00:26.57,Default,,0000,0000,0000,,还可以再化简一下
Dialogue: 0,0:00:26.57,0:00:29.27,Default,,0000,0000,0000,,很明显8和10有公因数
Dialogue: 0,0:00:29.27,0:00:39.77,Default,,0000,0000,0000,,它们都能被2整除
Dialogue: 0,0:00:39.77,0:00:43.29,Default,,0000,0000,0000,,分子分母同除以2
Dialogue: 0,0:00:43.29,0:00:47.59,Default,,0000,0000,0000,,这样分数的值不变
Dialogue: 0,0:00:47.59,0:00:51.14,Default,,0000,0000,0000,,因为分子和分母
Dialogue: 0,0:00:51.14,0:00:53.00,Default,,0000,0000,0000,,除以同一个数