hasil dari 6 5/8-2 1/2-1 2/4

[tex] \frac{53}{8} - \frac{5}{2} - \frac{6}{4} \\ = \: \frac{53 - 20 - 12 }{8} \\ = \frac{21}{8} \\ = 2 \frac{5}{8} [/tex]