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a) (10000/100)÷ 2= (5000/50)÷2= (2500/25)÷5= 100/1
b) (720/300)÷2= (360/150)÷2= (180/75)÷3= (60/25)÷5= 12/5
b) (720/300)÷2= (360/150)÷2= (180/75)÷3= (60/25)÷5= 12/5
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