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Simplify the expression.

-[tex] \frac{7}{9} [/tex] - [tex]\frac{5}{10} [/tex]


A) -[tex] \frac{7}{9} [/tex]

B) [tex]\frac{12}{19} [/tex]

C) [tex]\frac{23}{18} [/tex]

D) -[tex]\frac{23}{18}[/tex]


Please explain your answers.
Thanks! : )

Respuesta :

sqdancefan
Selection D is appropriate.

-14/18 -9/18 = -23/18
Ver imagen sqdancefan
[tex]-\frac{7}{9} - \frac{5}{10} [/tex]
= [tex]-\frac{70}{90} - \frac{45}{90}[/tex]
= [tex]-\frac{115}{90}[/tex]
= [tex]-\frac{23}{18}[/tex] (Answer D)

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