12.000 - 20% yang tau jawab ya

12.000\100×20=2.400
12.000-2.400=9.600

[tex]12.000 - \frac{20}{100} \\ \\ = 11.999 \frac{100}{100} - \frac{20}{100} \\ \\ = 11.999 \frac{80}{100} \\ \\ = 11.999 \: \frac{4}{5} [/tex]