Question

O valor de -12,7 + 3/8 – ( -2,6 + 1/9 )​

Answer 1

Resposta:

$b) - \dfrac{3541}{360}$

Explicação passo-a-passo:

.

$- 12.7 + \dfrac{3}{8} - ( - 2.6 + \dfrac{1}{9} )$

$- \dfrac{127}{10} + \dfrac{3}{8} - ( - \dfrac{26 \div 2}{10 \div 2} + \dfrac{1}{9} )$

$- \dfrac{127}{10} + \dfrac{3}{8} - ( - \dfrac{13}{5} + \dfrac{1}{9} )$

$- \dfrac{127}{10} + \dfrac{3}{8} - ( \dfrac{ - 117 + 5}{45} )$

$- \dfrac{127}{10} + \dfrac{3}{8} - ( - \dfrac{112}{45} )$

$- \dfrac{127}{10} + \dfrac{3}{8} + \dfrac{112}{45}$

$\dfrac{ - 4572 + 135 + 896}{360}$

$- \dfrac{3541}{360}$