Question

3(-5/9)+(-7/8)÷(-21/4)

PRECISO URGENTEEEE
PASSO A PASSO

Answer 1

Resposta:

$3(\frac{-5}{9}) + (\frac{-7}{8}): (\frac{-21}{4})\\ \\\frac{-15}{9}+ (\frac{-7}{8} .\frac{4}{-21})\\\\\frac{-15}{9} +\frac{-28}{-168}\\ \frac{-5}{3} +\frac{1}{6}\\ \\ \frac{-30+3}{18} \\ \\ \frac{-27}{18} =\frac{-3}{2}$

Explicação passo-a-passo: