Answer:
17/20
Step-by-step explanation:
[tex] = \frac{17}{20} [/tex]
[tex] = \frac{3 \times 4}{5 \times 4} + \frac{1 \times 5}{4 \times 5} [/tex]
[tex] = \frac{12}{20} + \frac{5}{20} [/tex]
[tex] = \frac{12 + 5}{20} [/tex]
