Question

Calcular fração heterogênea:  9/5 - 4/3 =

Answer 1

$\frac{9}{5}-\frac{4}{3}$

$\frac{3*9-5*4}{15}$

$\frac{27-20}{15}$

$\boxed{\frac{7}{15}}$

Answer 2

9/5 - 4/3 =

tira o m.m.c (5,3) = 15

     27 - 20
________________ = 7/15
           15

obs: 15:5 x 9 = 27
       15:3x4 = 20