September 2018 1 33 Report
Efectúa las siguientes operaciones simplificando el resultado siempre que sea posible:
a). 3/9 -1/5 + 2/4=...........


b).4/7 x (2/5 - 1/5)=........


c). (3/7 + 1/2 + 2) ÷ 2/3 =.....


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