Question

Answer 1

`3/4 + 1/6= 18/24 + 4/24= 22/24=  11/12`

`2/5 + 7/10 + 1/15=4/10 + 7/10 + 1/15= 11/10 + 1/15= 7/6`

Answer 2

\(a,\dfrac{3}{4}+\dfrac{1}{6}=\dfrac{9}{12}+\dfrac{2}{12}=\dfrac{11}{12}\)

\(b,\dfrac{2}{5}+\dfrac{7}{10}+\dfrac{1}{15}=\dfrac{12}{30}+\dfrac{21}{30}+\dfrac{2}{30}=\dfrac{7}{6}\)