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DCXLVIII
To simplify 648 over 9, you need to divide both the numerator and the denominator by their greatest common factor, which is 9. When you divide 648 by 9, you get 72. Therefore, the simplified form of 648 over 9 is 72.
The LCM is 648.
25% of 648= 25% * 648= 0.25 * 648= 162
648 = ?%*900 648 = x/100*900 648 = 9x x = 648/9 x = 72