\(\dfrac{5}{2}+\dfrac{6}{5}-\dfrac{27}{12}=\dfrac{25}{10}+\dfrac{12}{10}-\dfrac{27}{12}=\dfrac{37}{10}-\dfrac{27}{12}=\dfrac{222}{60}-\dfrac{135}{60}=\dfrac{87}{60}=\dfrac{29}{20}\)
\(\dfrac{5}{2}+\dfrac{6}{5}-\dfrac{27}{12}=\dfrac{150}{60}+\dfrac{72}{60}-\dfrac{135}{60}=\dfrac{87}{60}=\dfrac{29}{20}\)