Question

Transforme em fração irredutível os números racionais a seguir:
a) 2,5
b) 3,81
c) 0,03
d) 4,222...
e) 3,4555...

Answer 1

Olá, JuliFerri.

A

$\dfrac{25}{10}=\left(\dfrac{25}{10}\right)^{:5}=\boxed{\dfrac{5}{2}}$

B

$\boxed{\dfrac{381}{100}}$

C

$\boxed{\dfrac{3}{100}}$

D

$\mathsf{4+0,\overline{222}=}\\\\\mathsf{4+\dfrac{2}{9}}\\\\\\\mathsf{\dfrac{36+2}{9}=}\\\\\\\mathsf{\boxed{\dfrac{38}{9}}}$
E

$3+0,4\overline{555}\\\\3+\dfrac{45-4}{90}\\\\\\3+\dfrac{41}{90}\\\\\\\dfrac{270+41}{90}\\\\\\\boxed{\dfrac{311}{90}}$

Espero ter ajudado.