Escreva a fração geratriz correspondente aos seguintes números racionais :?
A) 25,7
B) 1,656565...
C) 3,9
D) 0,843
E) 7, 5414141
F) 10,32
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A) 25,7
B) 1,656565...
C) 3,9
D) 0,843
E) 7, 5414141
F) 10,32
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Answers & Comments
A)25,7=257/10
B=1,6565...=1+65/99= 164/99
C)3,9=39/10
D)0,843=843/1000
E)7,5414141...= 7+541-4/990=7+537/990 = 7467/990= 2489/330
F)10,32= 1032/100
A) 25,7 = 257/10
B) [(1,6)5]6565...= [165]-(16)/90 = 149/90
C) 3,9 = 39/10
D) 0,843 = 843/1000
E) [(7, 5)41]4141 = [7541]-(75)/990 = 7466/990 (:2/2) = 3733/495
F) 10,32 = 1032/10