6per7a - 2per7a =....... Tolong bantuannya ya

[tex] \frac{6}{7} a - \frac{2}{7} a = \frac{6-2}{7}a = \frac{4}{7}a \\ \\ \frac{6}{7a} - \frac{2}{7a} = \frac{6-2}{7a} = \frac{4}{7a}[/tex]

Maap kalau tidak membantuu