1.   What is the least common multiple of 4 and 8?
    A. 4 B. 8
    C. 16 D. 24
    Hint

  2.   Which is greatest: or
    A. B.
    C. D.
    Hint

  3.   The LCM of 5rs2 and 4st is ____ .
    A. 20rt B. 20rst
    C. 20s2 D. 20rs2t
    Hint

  4.   Find the least common denominator for and
    A. 30e2f B. 4e2f
    C. 48e2f D. 36e2f
    Hint

  5.   Find the LCD of and
    A. 15ab2 B. 15a2b2c
    C. 15ab2c D. 15abc
    Hint



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