Question

pessoal quero resolver a 15 me ajudem

Answer 1

Só sei responder a questão A:
4:9=0,444444...
Espero ter ajudado.

Answer 2

a) $0,444... = \frac{4}{9}$

b) $0,12525...= \frac{125-1}{990} = \frac{124}{990}$

c) $0,545454...= \frac{54}{99} = \frac{6}{11}$

d) $0,04777...= \frac{47-4}{900} = \frac{43}{900}$

e) $0,12343434...= \frac{1234-12}{9900} = \frac{1222}{9900} = \frac{611}{4950}$

f) $0,2333...= \frac{23-2}{90} = \frac{21}{90} = \frac{7}{30}$

g) $0,153833833833...= \frac{153833-153}{999000} = \frac{153680}{999000} = \frac{3842}{24975}$

h) $0,024024...= \frac{24}{999} = \frac{8}{333}$

i) $0,888313131...= \frac{88831-888}{99000} = \frac{87943}{99000}$

j) $0,321012301230123...= \frac{3210123-321}{9999000}= \frac{3209802}{9999000} = \frac{534967}{1666500}$