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

(a) \( \dfrac{9}{12} \; \square \; \dfrac{9}{18} \)

(b) \( \dfrac{6}{6} \; \square \; \dfrac{6}{11} \)

(c) \( \dfrac{12}{10} \; \square \; \dfrac{6}{10} \)

(d) \( \dfrac{10}{9} \; \square \; \dfrac{8}{9} \)

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

(a) \( \dfrac{8}{7} \; \square \; \dfrac{42}{30} \)

(b) \( \dfrac{9}{9} \; \square \; \dfrac{7}{7} \)

(c) \( \dfrac{12}{15} \; \square \; \dfrac{10}{40} \)

(d) \( \dfrac{10}{19} \; \square \; \dfrac{13}{38} \)