Answer:
D
Step-by-step explanation:
Least common denominator of 7 and 8 = 56
[tex]\frac{-1}{8}=\frac{-1*7}{8*7}=\frac{-7}{56}\\\\\\\frac{1}{8}=\frac{1*7}{8*7}=\frac{7}{56}\\\\\\\frac{-1}{7}=\frac{-1*8}{7*8}=\frac{-8}{56}\\\\\\\frac{1}{7}=\frac{1*8}{7*8}=\frac{8}{56}[/tex]
-8/56 , -7/56 , 7/56 , 8/56 ,
-1/7 , -1/8 , 1/8 , 1/7
