\(\dfrac{7}{20}+\dfrac{20}{72}+\dfrac{2}{12}\)=\(\dfrac{7}{20}+\dfrac{5}{18}+\dfrac{1}{6}\)=\(\dfrac{63}{180}+\dfrac{50}{180}+\dfrac{30}{180}\)=\(\dfrac{143}{180}\)
\(\dfrac{7}{20}+\dfrac{20}{72}+\dfrac{2}{12}\)
\(=\dfrac{7}{20}+\dfrac{5}{18}+\dfrac{1}{6}\)
\(=\dfrac{113}{180}+\dfrac{1}{6}\)
\(=\dfrac{143}{180}\)