Question

escreva na forma de fração:a)6,1777... b)5,666... c)0,393939...

Answer 1

a) 6,1777... =  6 + 0,1777... = 6 + (17 - 1)/90 = 6 + 16/90 =

= (90*6 + 16)/90 = (540 + 16) /90 = 556/90

b) 5,666... = 5 + 0,666... = 5 + 6/9 = (9*5 + 6)/9 = 51/9

c) 0,393939...= 39/99

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06/04/2016
Sepauto - SSRC
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