Fraction Division1: a ÷ b (Partitive)
(a) How many pizzas will each student receive if 1 pizza is divided equally among: [br] (i) 2 students; (ii) 3 students; (iii) 4 students?[br][br](b) How many pizzas will each student receive if each of the following numbers of pizzas are divided among 3 students?[br] (i) 2 pizzas (ii) 4 pizzas (iii) 5 pizzas[br][br]In general, how would you calculate a ÷ b ?
Anthony Or. GeoGebra Institute of Hong Kong. (中文版:http://www.geogebratube.org/student/m14540)[br]orchiming@gmail.com
Ratio
Define and Prove
Ratio is the property between two numbers. [br]Ratio between a & b is written as a:b[br]Ratio can also be written as [math]\frac{a}{b}[/math]
Simplest form of Ratio.
Order relation between ratios.[br]Ratios given are [math]\frac{4}{5}and\frac{7}{6}[/math] . Which ratio is greater?[br]To determine let us multiply 4 & 6.It is 24. Then multiply 5 & 7. It is 35.[br]24 is smaller than 35. That means first multiplication is smaller than second multiplication.[br]That means first ratio is smaller than second ratio.