5N6.1.1 分數除法:均分 Fraction Division (Partitive)

http://www.geogebratube.org/material/show/id/14540 (Download GeoGebra file)

(a) 1個薄餅均分給下列各數目的人,每人分得薄餅多少個?
  (i) 2 人  (ii) 3 人 (iii) 4 人
(b) 把下列各數目的薄餅均分給3人,每人分得薄餅多少個?
  (i) 2 個薄餅 (ii) 4 個薄餅 (iii) 5 個薄餅
一般來說,你會如何計算 a ÷ b ?

 http://www.geogebratube.org/material/show/id/14539 (Download GeoGebra file)

(a) 4+1/2 個薄餅均分給2人,每人分得薄餅多少個?
(b) 4+3/4 個薄餅均分給3人,每人分得薄餅多少個?
(c) 1+3/4 個薄餅均分給5人,每人分得薄餅多少個?
一般來說,你會如何計算 p/q ÷ b ?

 a ÷ b = a/b

(a) How many pizzas will each people receive if 1 pizza is divided among: 
  (i) 2 people;  (ii) 3 people; (iii) 4 people?
(b) How many pizzas will each people receive if each of the following numbers of pizzas are divided among 3 people?
  (i) 2 pizzas  (ii) 4 pizzas (iii) 5 pizzas
In general, how would you calculate a ÷ b ?

p/q ÷ b = p/q×1/b

http://www.geogebratube.org/material/show/id/14543 (Download GeoGebra file)

(a) How many pizzas will each people receive if 4+1/2 pizzas are divided among 2 people? 
(b) How many pizzas will each people receive if 4+3/4 pizzas are divided among 3 people? 
(c) How many pizzas will each people receive if 1+3/4 pizzas are divided among 5 people?
In general, how would you calculate p/q ÷ b ?