Hasil dari [tex]1 \frac{1}{2} - 2 \frac{1}{5} + 1 \frac{1}{4} [/tex] Adalah..

[tex]y = 1\frac{1}{2} - 2\frac{1}{5} + 1\frac{1}{4} \\ y = 1\frac{10}{20} - 2\frac{4}{20} + 1\frac{5}{20} \\ y = \frac{30}{20} - \frac{44}{20} + \frac{25}{20} \\ y = \frac{11}{20}[/tex]