Hasil dari 1- 5 2/3 - 3 3/7 adalah...

[tex]1 - 5 \frac{2}{3} - 3 \frac{3}{7} \\ \\ = \frac{21}{21} - 5 \frac{14}{21} - 3 \frac{9}{21} \\ \\ = \frac{21 - 119 - 72}{21} \\ \\ = - \frac{76}{21} \\ \\ = - 3 \frac{13}{21} [/tex]