Question

a)-(-6 / 10) + ( - 2/ 14 )
b) 1/ 2 -5/ 2
c) 24,6 - ( + 6,23 )

Answer 1

Resposta:

$a) - ( \frac{ - 6}{10} ) + ( \frac{ - 2}{14} ) \\ \frac{6}{10} + \frac{ - 1}{7} \\ \frac{6}{10} + \frac{ - 1}{7} \\ \frac{3}{5} + \frac{ - 1}{7} \\ \frac{21 - 5}{35} \\ \frac{16}{35}$

$b) \frac{1}{2} - \frac{5}{2} \\ \frac{1 - 5}{2} \\ \frac{ - 4}{2} \\ - \frac{4}{2} \\ - 2$

$c)24.6 - ( + 6.23) \\ 24.6 - 6.23 \\ 18.37$