Question

Qual o valor de a-b, se a= 2/3 e b= -3/5

Answer 1

Resposta:

19/15

Explicação passo a passo:

$\dfrac{2}{3}-\left(-\dfrac{3}{5}\right) \\\\\\= \dfrac{2}{3}+\dfrac{3}{5}\right$

O MMC entre 3 e 5 dá 15

$= \dfrac{10}{15}+\dfrac{9}{15} \\\\\\= \boxed{\dfrac{19}{15}}$