Respuesta:
19/42
Explicación paso a paso:
( 5/4 ÷ 7/8 ) +(3/6 × 5/7) - 4/3
( 5x8)/(4x7) + ( 15/42) - 4/3
40/28 + 5/14 - 4/3
20/14 + 5/14 - 4/3
25/14 - 4/3
[tex](\frac{5}{4}: \frac{7}{8} )+(\frac{3}{6}x \frac{5}{7} ) - \frac{4}{3}\\ \\(\frac{5}{4})(\frac{8}{7} )+(\frac{15}{42}) - \frac{4}{3}\\\\\frac{40}{28} + \frac{15}{42} - \frac{4}{3}\\\\\frac{20}{14} + \frac{5}{14} - \frac{4}{3}\\ \\\frac{20+5}{14} - \frac{4}{3}\\\\\frac{25}{14} - \frac{4}{3}\\\\\frac{75 - 56}{42}\\ \\\frac{19}{42} \\\\[/tex]
Eternamente
☆༒ axllxa ༒☆
