\\ = > \\ x = 36 \\ x = 37" alt=" \frac{5}{8} < \frac{x}{56} < \frac{19}{28} \\ 7 \times 5 < x < 2 \times 19 \\ 35 < x < 38 \\ \\ x ∈ℕ = > \\ = > \\ x = 36 \\ x = 37" align="absmiddle" class="latex-formula">
\\ = > \\ x = 13 \\ x = 14 \\ x = 15 \\ x = 16 \\ x = 17 \\ x = 18 \\ x = 19" alt=" \frac{4}{15} < \frac{x}{45} < \frac{4}{9} \\ 4 \times 3 < x < 4 \times 5 \\ 12 < x < 20 \\ x ∈ℕ \: = > \\ = > \\ x = 13 \\ x = 14 \\ x = 15 \\ x = 16 \\ x = 17 \\ x = 18 \\ x = 19" align="absmiddle" class="latex-formula">