Question

a) 2/5+2/3+3/4                b)1/3+5/12+5/6               c)1/6+5/24+2/3  

Answer 1

a) \(\dfrac{2}{5}+\dfrac{2}{3}+\dfrac{3}{4}=\dfrac{24}{60}+\dfrac{40}{60}+\dfrac{45}{60}=\dfrac{24+40+45}{60}=\dfrac{109}{60}\)

b) \(\dfrac{1}{3}+\dfrac{5}{12}+\dfrac{5}{6}=\dfrac{4}{12}+\dfrac{5}{12}+\dfrac{10}{12}=\dfrac{4+5+10}{12}=\dfrac{19}{12}\) 

c) \(\dfrac{1}{6}+\dfrac{5}{24}+\dfrac{2}{3}=\dfrac{4}{24}+\dfrac{5}{24}+\dfrac{16}{24}=\dfrac{4+5+16}{24}=\dfrac{25}{24}\)

Answer 2

\(a,\dfrac{2}{5}+\dfrac{2}{3}+\dfrac{3}{4}=\dfrac{109}{60}\)

\(b,\dfrac{1}{3}+\dfrac{5}{12}+\dfrac{5}{6}=\dfrac{19}{12}\)

\(c,\dfrac{1}{6}+\dfrac{5}{24}+\dfrac{2}{3}=\dfrac{25}{24}\)