1per5+2per3 di kalih5per4di kurang 1per8

[tex] = \frac{1}{5} + \frac{2}{3} \times \frac{5}{4} - \frac{1}{8} [/tex]
dahulukan perkalian
[tex] = \frac{1}{5} + \frac{10}{12} - \frac{1}{8} [/tex]
samakan penyebutnya
[tex] = \frac{24 + 100 - 15}{120} [/tex]
[tex] = \frac{109}{120} [/tex]