Fractions and Division

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Presentation transcript:

Fractions and Division

Review ⑴ If I want to divide 18 cakes into two equal parts. How many cakes in each part? 18 ÷ 2 = 9

⑵If I want to divide 6 cakes into two equal parts ⑵If I want to divide 6 cakes into two equal parts. How many cakes in each part? 6 ÷ 2 = 3

= ⑶ If I want to divide 1 cake into two equal parts. How many cakes in each part? 1 ÷ 2 =

分数=Fraction 分:distribute 数:number

Activity 1 ⑴ The wood stick is divided into 4 equal parts. One part is of the wood stick. ⑵ A packet of biscuits is divided into 2 people equally. Every one will share package . ⑶ Divide 9 bananas into 3 equal parts. One part is ( ) bananas. One part is of these bananas. 1 4 1 2 1 3 3

Activity 2 If I want to divide 3 mooncakes into 4 equal parts. How many mooncakes in each part? 3 ÷ 4 =

Fraction and division: 1 ÷ 2= dividend÷ divisor = 3 ÷ 4=

Fraction and division:

Exercise 1 Use fractions to express the quotient. ⑴7÷13= ⑵3÷11= ⑶8÷5= ⑷9÷16= ⑸n÷m=

Exercise 2 Try to fill in the blanks. ⑴（）÷7= ⑵1÷（）= ⑶ =（）÷9 ⑷ =（）÷（） 4 3 7 5 8

Exercise 3 Express the painted part of the whole shape in fractions. ( ) ( ) ( ) ( )

Summarize Fraction and division: What have we learned and gained today? Fraction and division: