Question

11) Indique três frações equivalentes a:
a)
7/3
b)
5/8
c)
9/11
d)
12/5

Answer 1

É só multiplicar numerador e denominador pelo mesmo número. Aqui vou multiplicar cada uma por: 2, 3 e 4;


$a)~~ \dfrac{7}{3} \to ~~\boxed{\dfrac{14}{6}~=~\dfrac{21}{9}~=~\dfrac{28}{12}}\\\\\\\\ b)~~ \dfrac{5}{8} \to ~~\boxed{\dfrac{10}{16}~=~\dfrac{15}{24}~=~\dfrac{20}{32}} \\\\\\\\ c)~~ \dfrac{9}{11} \to ~~\boxed{\dfrac{18}{22}~=~\dfrac{27}{33}~=~\dfrac{36}{44}}\\\\\\\\ d)~~ \dfrac{12}{5} \to ~~\boxed{\dfrac{24}{10}~=~\dfrac{36}{15}~=~\dfrac{48}{20}}$