(9a²b^3/14x^3y²)÷(3a^3b²/49x^3y^3)
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(9a²b^3/14x^3y²)÷(3a^3b²/49x^3y^3)(9a²b^3/14x^3y²)÷(3a^3b²/49x^3y^3)(9
(9a²b^3/14x^3y²)÷(3a^3b²/49x^3y^3)
(9a²b^3/14x^3y²)÷(3a^3b²/49x^3y^3)
(9a²b^3/14x^3y²)÷(3a^3b²/49x^3y^3)
21by/2a