\(=\dfrac{4}{46}+\dfrac{1}{46}=\dfrac{5}{46}\)
\(\dfrac{1}{72}\times\dfrac{144}{23}+\dfrac{1}{46}=\dfrac{144}{1656}+\dfrac{1}{46}=\dfrac{2}{23}+\dfrac{1}{46}=\dfrac{4}{46}+\dfrac{1}{46}=\dfrac{5}{46}\)
\(\dfrac{144}{1656}+\dfrac{1}{46}\)
=\(\dfrac{144}{1656}+\dfrac{1.36}{46.36}\)
=\(\dfrac{36+144}{46.36}\)=\(\dfrac{5}{46}\)