Question

(Valendo 20 ptos pra quem responder) Alguem monta o MDC e responde a pergunta?

Answer 1

a) 84 72  | 2

 42 36 | 2

 21 18 | 3

 7 6

MDC: 2 . 2 . 3 = 12

R: 84/72 = 7/6

B) 54 90 | 2

   27 45 | 3

   9  15   | 3

   3  5    

MDC: 2. 3. 3 = 18

R: 54/90 = 3/5

Answer 2

84,72/2

42,36/2

21,18/2

21,9/3

7,3/3

7,1/7

1,1