By what number should (-15)-1 be divided so that the quotient may be equal to (-5)-1?
Let the number (-15)-1 shlould be devided by 
According to the question:
(-15)-1 ÷
= (-5)-1
[Using 
-n = 
]
[using 
]
Therefore (-15)-1 should be devided by 
1
By what number should (-15)-1 be divided so that the quotient may be equal to (-5)-1?
Let the number (-15)-1 shlould be devided by
According to the question:
(-15)-1 ÷= (-5)-1
[Using -n = ]
[using ]
Therefore (-15)-1 should be devided by