Question

[Anh Nguyet Nguyen]

giải hộ mình :1/2+1/3:1/4

và 13/12x3/8+5/8x13/12

Answer 1

[Knight™]

\(\dfrac{1}{2}+\dfrac{1}{3}:\dfrac{1}{4}=\dfrac{1}{2}+\dfrac{4}{3}=\dfrac{3}{6}+\dfrac{8}{6}=\dfrac{11}{6}\)

\(\dfrac{13}{12}\times\dfrac{3}{8}+\dfrac{5}{8}\times\dfrac{13}{12}=\dfrac{13}{12}\times\left(\dfrac{3}{8}+\dfrac{5}{8}\right)=\dfrac{13}{12}\)

Answer 2

[Chuu]

1/2 + 4/3 =11/6

13/12 x ( 3/8 + 5/8) = 13/12 x 1 = 13/12