Question

obter a fração equivalente fração 15/20 cuja a soma dos termos seja igual a 84.​

Answer 1

k= 84/3+4= 84/7 = (12)

15/20 = 3/4 *(12/12) = 36/48 ✓

{x/y=15/20

x+y/y =15+20/20

84/y = 35/20

y=84*20/35 = 1680/35= 48 ✓

{x+y=84 => x =84-y = 84-48= 36 ✓

x/y = 36/48 ✓