Question

Simplify and Express with positive exponents :
$( \frac{ - 8}{3} ) {}^{ - 7} \div ( \frac{ - 8}{3} ) {}^{4}$
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Answer 1

Answer:

Addition:

(a/b) + (c/d) =(ad+bc)/bd

Subtraction:

(a/b) – (c/d) =(ad-bc)/bd

Multiplication:

(a/b) . (c/d) = ac/bd