Jamillychelseabritomgo Jamillychelseabritomgo Matemática Respondido 4) a) [tex] \frac{3}{ \times } \times = \frac{6}{10} \: \: \: \: [/tex] b)[tex] \frac{9}{ \times } \: \: = \frac{12}{8} [/tex]c)[tex] \frac{ \times }{10} \: \: = \frac{6}{15} [/tex]