[tex] \frac{5}{12} - \frac{3}{20} \\ \\ LCD = 60 \\ \\ \frac{5 \times 5}{12 \times 5} - \frac{3 \times 3}{20 \times 3} \\ \\ \frac{25}{60} - \frac{9}{60} \\ \\ \frac{25-9}{60} \\ \\ \frac{16}{60} \\ \\ \frac{4}{15} \\ \\ Answer: \fbox {4/15} \ or \ \fbox {0.2667} [/tex]
