(1) Compare the fractions (insert the sign (<), (>) or (=)):

(a) \( \dfrac{5}{5} \; \square \; \dfrac{5}{20} \)

(b) \( \dfrac{8}{8} \; \square \; \dfrac{8}{9} \)

(c) \( \dfrac{5}{9} \; \square \; \dfrac{9}{9} \)

(d) \( \dfrac{18}{10} \; \square \; \dfrac{13}{10} \)

(2) Compare the fractions (insert the sign (<), (>) or (=)):

(a) \( \dfrac{3}{6} \; \square \; \dfrac{30}{84} \)

(b) \( \dfrac{5}{10} \; \square \; \dfrac{7}{5} \)

(c) \( \dfrac{10}{12} \; \square \; \dfrac{9}{25} \)

(d) \( \dfrac{9}{12} \; \square \; \dfrac{9}{32} \)