Question

AaaaA ayuda tengo 1 hora para entregarla. ,,,,,
-1/4 + (3/8) =
8/7 - (-1/3) =
3/4 + (-1/2) =
19.56 - 31.67 =
-95.45 + 105.12=

Answer 1

Respuesta:

Corona?...

Explicación paso a paso:

A)

$-1/4+\left(3/8\right)\\\\=-1/4+\frac{3}{8}\\\\=\frac{-1}{4}+\frac{3}{8}\\\\=\frac{1}{8}$

B)

$=\frac{8}{7}-\frac{-1}{3}\\\\\\=\frac{31}{21}\\\\\\=1\frac{10}{21}$

C)

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

D)

$\frac{\begin{matrix}\space\space&\textbf{2}&11&\space\space&\space\space&\space\space\\ \space\space&\textbf{\linethrough{3}}&\linethrough{1}&.&6&7\\ -&\textbf{1}&9&.&5&6\end{matrix}}{\begin{matrix}\space\space&\textbf{1}&2&.&1&1\end{matrix}}\\\\\\\mathrm{Poner\:un\:signo\:de\:negacion\:en\:la\:respuesta}\\\\\\=-12.11$

E)

$\frac{\begin{matrix}\space\space&\textbf{0}&9&14&\space\space&10&12\\ \space\space&\textbf{\linethrough{1}}&\linethrough{10}&\linethrough{15}&.&\linethrough{11}&\linethrough{2}\\ -&\textbf{0}&9&5&.&4&5\end{matrix}}{\begin{matrix}\space\space&\textbf{0}&0&9&.&6&7\end{matrix}}\\\\\\=9.67$