It is 30
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lcd(9, 6) = 18.
The LCD is 600.
The LCD or LCM is 360
LCD(5, 4, 10, 3) = 60
In adding or subtracting dissimilar fractions, you will need first to get its LCD or least common denominator. For example: 3/2 + 5/3 = ? We will get the LCD of two and three and we will get 6 So the equation will become: 9/6 + 10/6 Then the final answer will be : 19/6