Resposta :
Explicação passo-a-passo:
[tex] \frac{a {b}^{4} }{6} - \frac{5a {b}^{4} }{2} + \frac{7a {b}^{4} }{3} = [/tex]
[tex]mmc(2 \: \: 3 \: \: 6) = 6[/tex]
[tex] \frac{a {b}^{4} }{6} - \frac{15a {b}^{4} }{6 } + \frac{14a {b}^{4} }{6} = [/tex]
[tex] \frac{1a {b}^{4} - 15a {b}^{4} + 14a {b}^{4} }{6} = [/tex]
[tex] \frac{(1 - 15 + 14)a {b}^{4} }{6} = [/tex]
[tex] \frac{( - 14 + 14)a {b}^{4} }{6} = [/tex]
[tex] \frac{0a {b}^{4} }{6} = \frac{0}{0} = 0[/tex]