Answer:
a) 7/12
b) 5/9
Step-by-step explanation:
a)
[tex]\frac{7}{12} = \frac{49}{84}\\\\\frac{4}{7} = \frac{48}{84}\\\\\frac{49}{84} > \frac{48}{84}\\\\\frac{7}{12} > \frac{4}{7}[/tex]
b)
[tex]\frac{6}{11} = \frac{54}{99}\\\\\frac{5}{9} = \frac{55}{99}\\\\\frac{55}{99} > \frac{54}{99}\\\\\frac{5}{9} > \frac{6}{11}[/tex]