Question

A. 51/17 + 36/17
B. (7/4 + 5/3) - 1/4
C. (- 1/2 + 5/8) + (- 6/7 - 2\7)

Answer 1

Hola.

$\frac{51}{17}+\frac{36}{17}=\frac{87}{17}\quad \left(\mathrm{Decimal:\quad }\:5.11765\dots \right)$

$\left(\frac{7}{4}+\frac{5}{3}\right)-\frac{1}{4}=\frac{19}{6}\quad \left(\mathrm{Decimal:\quad }\:3.16667\dots \right)$

$\left(-\frac{1}{2}+\frac{5}{8}\right)+\left(-\frac{6}{7}-\frac{2}{7}\right)=-\frac{57}{56}\quad \left(\mathrm{Decimal:\quad }\:-1.01786\dots \right)$

¡Espero haberte ayudado, saludos...!