Respuesta :
[tex] \dfrac{3}{4} + \dfrac{1}{3} =[/tex]
[tex] = \dfrac{3 \times 3}{4 \times 3} + \dfrac{1 \times 4}{3 \times 4}[/tex]
[tex] = \dfrac{9}{12} + \dfrac{4}{12}[/tex]
[tex] = \dfrac{13}{12}[/tex]
[tex] = 1\dfrac{1}{12}[/tex]
[tex] = \dfrac{3 \times 3}{4 \times 3} + \dfrac{1 \times 4}{3 \times 4}[/tex]
[tex] = \dfrac{9}{12} + \dfrac{4}{12}[/tex]
[tex] = \dfrac{13}{12}[/tex]
[tex] = 1\dfrac{1}{12}[/tex]