Question

calcule: 40/120 + 39/40

(Fração )

Answer 1

$\frac{40}{120} =\frac{4}{12}=\frac{1}{3}$

O MMC entre 3 e 40 é igual a 120.

$\frac{1}{3} +\frac{39}{40} = \frac{1.40+39.3}{120} =\frac{40+117}{120} =\frac{157}{120}$