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That is a comma between the two

That is a comma between the two-example-1

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The two denominators are 45x^4y^3 and 105x^6y^2.
Note that 15x^4y^2 is common to both denominators. Thus, the first denominator can be written as 3y(15x^4y^2) and the second can be written as 7x^2(15x^4y^2).

To obtain the LCD of these two fractions, multiply as follows:

[3y][7x^2](15x^4y^2).


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