Question

me ajude 1/5+4/3-9/15 por favor

Answer 1

Resposta:

14/15

Explicação passo-a-passo:

1/5 + 4/3 - 9/15

1. tirar o MMC

nesse caso, será 15

2. aplicar o MMC

3/15 + 20/15 - 9/15

3. finalizar as contas

3/15 + 11/15

14/15

Answer 2

Explicação passo-a-passo:

$\sf \dfrac{1}{5}+\dfrac{4}{3}-\dfrac{9}{15}$

$\sf mmc(3,5,15)=15$

$\sf \dfrac{1}{5}+\dfrac{4}{3}-\dfrac{9}{15}$

$\sf =\dfrac{1\cdot3+4\cdot5-9\cdot1}{15}$

$\sf =\dfrac{3+20-9}{15}$

$\sf =\large\red{\dfrac{14}{15}}$