Question

Se a=0,666..., b=1,333... e c=0,121212..., então ab + c é igual a:

Answer 1

Ola Ribeiro

a = 0.666... = 2/3 
b = 1.333... = 1 + 1/3 = 4/3 
c = 0.1212... = 12/99 = 4/33

a*b + c = 8/9 + 4/33 

mmc = 9*33 = 297

8/9 = 264/297
4/33 = 36/297

264/297 + 36/297 = 300/297 = 100/99

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