[Script Info]
Title: 
[Events]
Format: Layer, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, Text
Dialogue: 0,0:00:00.91,0:00:05.22,Default,,0000,0000,0000,,將5又1/4寫為假分數
Dialogue: 0,0:00:05.22,0:00:07.78,Default,,0000,0000,0000,,讓我提醒你，假分數就是
Dialogue: 0,0:00:07.78,0:00:11.73,Default,,0000,0000,0000,,分子大於或等於分母
Dialogue: 0,0:00:11.73,0:00:17.62,Default,,0000,0000,0000,,分子的絕對值
Dialogue: 0,0:00:17.62,0:00:20.32,Default,,0000,0000,0000,,大於或等於
Dialogue: 0,0:00:20.32,0:00:34.81,Default,,0000,0000,0000,,分母的絕對值
Dialogue: 0,0:00:36.71,0:00:38.06,Default,,0000,0000,0000,,在這種情況下，我們有
Dialogue: 0,0:00:38.06,0:00:40.19,Default,,0000,0000,0000,,一個帶分數，整數部分為5
Dialogue: 0,0:00:40.19,0:00:43.72,Default,,0000,0000,0000,,1/4是一個真分數，因為它的分子
Dialogue: 0,0:00:43.72,0:00:49.62,Default,,0000,0000,0000,,小於分母
Dialogue: 0,0:00:49.62,0:00:54.22,Default,,0000,0000,0000,,所以，要寫成假分數
Dialogue: 0,0:00:54.22,0:00:55.38,Default,,0000,0000,0000,,我會教你方法
Dialogue: 0,0:00:55.38,0:01:02.07,Default,,0000,0000,0000,,5又1/4，方法很簡單
Dialogue: 0,0:01:02.07,0:01:09.13,Default,,0000,0000,0000,,5就等於20/4
Dialogue: 0,0:01:09.13,0:01:13.30,Default,,0000,0000,0000,,所以20/4 + 1/4 = 21/4
Dialogue: 0,0:01:13.30,0:01:17.62,Default,,0000,0000,0000,,另一個思考的方式是 5x4=20，加1，等於21
Dialogue: 0,0:01:17.62,0:01:21.53,Default,,0000,0000,0000,,所以，就是21/4
Dialogue: 0,0:01:21.53,0:01:29.79,Default,,0000,0000,0000,,你用帶分數或者你用
Dialogue: 0,0:01:29.79,0:01:32.07,Default,,0000,0000,0000,,帶分數的整數部分乘以分母
Dialogue: 0,0:01:32.07,0:01:35.78,Default,,0000,0000,0000,,再加上分子
Dialogue: 0,0:01:35.78,0:01:45.02,Default,,0000,0000,0000,,所以，讓我們看看為什麼這樣行得通
Dialogue: 0,0:01:45.02,0:01:50.13,Default,,0000,0000,0000,,讓我們看看5又1/4是什麼
Dialogue: 0,0:01:50.13,0:01:56.31,Default,,0000,0000,0000,,整數部分有5，這是一個整數
Dialogue: 0,0:01:56.31,0:02:05.67,Default,,0000,0000,0000,,讓我把它拷貝5次
Dialogue: 0,0:02:05.67,0:02:14.53,Default,,0000,0000,0000,,所以這是2、3、4、5
Dialogue: 0,0:02:14.53,0:02:30.87,Default,,0000,0000,0000,,我們有5個，然後還有1/4
Dialogue: 0,0:02:30.87,0:02:38.93,Default,,0000,0000,0000,,1/4是像這樣
Dialogue: 0,0:02:43.00,0:02:46.40,Default,,0000,0000,0000,,要寫成假分數
Dialogue: 0,0:02:46.40,0:02:54.20,Default,,0000,0000,0000,,將每個都分成一個個1/4
Dialogue: 0,0:02:54.20,0:03:02.53,Default,,0000,0000,0000,,這邊有4個1/4，4個1/4，4個1/4
Dialogue: 0,0:03:02.53,0:03:11.40,Default,,0000,0000,0000,,4個1/4。所以總共有多少個1/4
Dialogue: 0,0:03:11.40,0:03:25.00,Default,,0000,0000,0000,,我們有20個1/4，1/4是用綠色
Dialogue: 0,0:03:25.00,0:03:32.60,Default,,0000,0000,0000,,這就等於5
Dialogue: 0,0:03:37.60,0:03:48.73,Default,,0000,0000,0000,,然後我們再把它加上1/4
Dialogue: 0,0:03:48.73,0:03:59.20,Default,,0000,0000,0000,,所以我們得到21/4
Dialogue: 0,0:03:59.20,0:04:02.87,Default,,0000,0000,0000,,這解釋了為什麼這樣做的概念
Dialogue: 0,0:04:02.87,0:04:06.73,Default,,0000,0000,0000,,將整數部分乘以分母
Dialogue: 0,0:04:06.73,0:04:10.27,Default,,0000,0000,0000,,然後加上分子
Dialogue: 0,0:04:10.27,0:04:13.53,Default,,0000,0000,0000,,5又1/4 = 21/4
Dialogue: 0,0:04:13.53,0:04:19.40,Default,,0000,0000,0000,,5又1/4 = (5x4)+1/4