Question

Answer 1

\(=\left(\dfrac{79}{8}+\dfrac{3}{2}\right)-\dfrac{52}{9}=\dfrac{91}{8}-\dfrac{58}{9}=\dfrac{403}{72}\)

Answer 2

\(\left(9\dfrac{7}{8}+1\dfrac{1}{2}\right)-5\dfrac{7}{9}\)

\(=\left(\dfrac{79}{8}+\dfrac{3}{2}\right)-\dfrac{52}{9}\)

\(=\left(\dfrac{79}{8}+\dfrac{12}{8}\right)-\dfrac{52}{9}\)

\(=\dfrac{91}{8}-\dfrac{52}{9}\)

\(=\dfrac{403}{72}\)