Question

Se a = 1/2 e b = 12/7, efetue a + b.

Answer 1

Resposta:

$a+b=\boxed{\dfrac{31}{14}}$

Explicação passo-a-passo:

$a=\dfrac{1}{2}\qquad b=\dfrac{12}{7}\\a+b = \\\dfrac{1}{2}+\dfrac{12}{7}=\dfrac{7+24}{14}=\boxed{\dfrac{31}{14}}$

Answer 2

Resposta:

31/14 ≅ 2,214

Explicação passo-a-passo:

mmc de 2 e 7 = 14

1/2 = 14/28= 7/14

12/7= 24/14

7/14+24/14 = 31/14