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# åæ¸é¤æ³ - PowerPoint PPT Presentation

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## PowerPoint Slideshow about 'åæ¸é¤æ³' - molly-hoover

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Presentation Transcript
4個薄餅，

4

8 ÷ ¼ 9 ÷ 1/3 ¾÷3

4÷ 1/2＝8

8 ÷ 1/5＝40

9 ÷ 1/3＝27

3 1/6 = 3  6=18

1個變成6份, 3個便變成3  6=18份

6 是被除數, 除數的分母是4

6 ÷ 3/4 = 6  4 ÷3

3

28 ÷ 3/4＝

24 ÷ 5/6＝

72 ÷ 3/8＝

• 若被除數是分數,(如: ¼2 )怎樣算?
• 若被除數是帶分數,(如: 1½ 3 )怎樣算?
• 若被除數和除數都是分數, (如: 1½  3/8 )怎樣算?
• 若除數是帶分數, (如: 31½ )怎樣算?

By Chun King Wah