C= [tex] \frac{5}{4} + \frac{11}{4} * \frac{20}{33} [/tex]
= 4 * [tex] \frac{20}{33} [/tex]
= [tex] \frac{80}{33} [/tex] <== SIMPLIFIER
D= [tex] \frac{1}{12} : (2 - \frac{7}{3}) [/tex]
= [tex] \frac{1}{12} : (- \frac{1}{3}) [/tex]
= [tex] \frac{1}{12} * (-\frac{3}{1}) [/tex]
= [tex] -\frac{1}{4} <== SIMPLIFIER [/tex]
