Question

questão1
Dê 3 exemplos de frações equivalente
a)2/7
b)3/2
c)5/7
d)4/3
e)2/3
f)3/10

Answer 1

a) $\dfrac{2}{7}$

Multiplique o numerador e o denominador por um mesmo número diferente de 1:

$\dfrac{2}{7}=\dfrac{2\times2}{7\times2}=\dfrac{4}{14}$

$\dfrac{2}{7}=\dfrac{2\times3}{7\times3}=\dfrac{6}{21}$

$\dfrac{2}{7}=\dfrac{2\times4}{7\times4}=\dfrac{8}{28}$

b) 

$\dfrac{3}{2}=\dfrac{6}{4}$

$\dfrac{3}{2}=\dfrac{9}{6}$

$\dfrac{3}{2}=\dfrac{12}{8}$

c)

$\dfrac{5}{7}=\dfrac{10}{14}$

$\dfrac{5}{7}=\dfrac{15}{21}$

$\dfrac{5}{7}=\dfrac{20}{28}$

d)

$\dfrac{4}{3}=\dfrac{8}{6}$

$\dfrac{4}{3}=\dfrac{12}{9}$

$\dfrac{4}{3}=\dfrac{16}{12}$

e)

$\dfrac{2}{3}=\dfrac{4}{6}$

$\dfrac{2}{3}=\dfrac{6}{9}$

$\dfrac{2}{3}=\dfrac{8}{12}$

f)

$\dfrac{3}{10}=\dfrac{6}{20}$

$\dfrac{3}{10}=\dfrac{9}{30}$

$\dfrac{3}{10}=\dfrac{12}{40}$