-2\3 7 ÷ -2\3 4
7 and 4 are raised to sign
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(-2/3)⁷ ÷ (-2/3)⁴
a^m / a^n = a^(m-n)
(-2/3)⁷
(-2/3)⁴
(-2/3)⁷-⁴
(-2/3)³
(-2)³
3³
-8/27
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