Question

me ajudem urgente pfv 55p​

Answer 1

Resposta:

a)

4/9 -2/3+1

4/9 -6/9+9/9 =7/9

b)

(8/4-1/4)-(6/2-1/2)

7/4  -5/2  

7/4 -10/4 =-3/4

c)

(18/24 -20/24) / (2/4+1/4)

(-2/24) /(3/4)

(-2/24) *(4/3) =-8/72-1/9

d)

(-2/2+1/2) * (-8/4 -3/4)

(-1/2) * (-11/4) =11/8