Question

Efectua las operaciones con procedimiento
(-11. 2) + (-7.1)=
-2/5+ 4/5=
-5/7 + 4/5=
-5/6 + 1/6=
-3/5+2/5=
3/5 + (-2/3)=
2/5 + (-3/4)=
-3/5 + (-3/4)=
-2/7 + (-1/3)

Answer 1

Explicación paso a paso:

$( - 11 \times 2) + ( - 7 \times 1) \\ ( - 22) + ( - 7) = - 22 - 7 = - 29$

$- \frac{2}{5} + \frac{4}{5} = \frac{ - 2 + 4}{5} = \frac{2}{5}$

$- \frac{5}{7} + \frac{4}{5} = \frac{ - 25 + 28}{35} = \frac{3}{35}$

$- \frac{5}{6} + \frac{1}{6} = \frac{ - 5 + 1}{6} = - \frac{4}{6} = - \frac{2}{3}$

$- \frac{3}{5} + \frac{2}{5} = \frac{ - 3 + 2}{5} = - \frac{1}{5}$

$\frac{3}{5} + ( - \frac{2}{3} ) = \frac{3}{5} - \frac{2}{3} = \frac{9 - 10}{15} = - \frac{1}{15}$

$\frac{2}{5} + ( - \frac{3}{4} ) = \frac{2}{5} - \frac{3}{4} = \frac{8 - 15}{20} = - \frac{7}{20}$

$- \frac{3}{5} + ( - \frac{3}{4} ) = - \frac{3}{5} - \frac{3}{4} = \frac{ - 12 - 15}{20} = - \frac{27}{20}$

$- \frac{2}{7} + ( - \frac{1}{3} ) = - \frac{2}{7} - \frac{1}{3} = \frac{ - 6 - 7}{21} = - \frac{13}{21}$

Answer 2

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