pecahan [tex]7 \frac{3}{5} liter \: + 5 \frac{3}{10}liter \: - 1 \frac{1}{2} liter [/tex]

semoga bermanfaat
dan membantu maaf ya kalau salah

[tex]7 \frac{3}{5} + 5 \frac{3}{10} - 1 \frac{1}{2} = \\ \frac{38}{5} + \frac{53}{10} - \frac{3}{2} = \\ \frac{76 + 53 - 15}{10} = \frac{114}{10} = 11 \frac{4}{10} = 11 \frac{2}{5} [/tex]