1.   What is the least common multiple of 4 and 8?
    A. 8 B. 16
    C. 24 D. 4
    Hint
  2.   Find the least common multiple of 15 and 6.
    A. 30 B. 45
    C. 15 D. 60
    Hint
  3.   Which is greatest: or
    A. B.
    C. D.
    Hint
  4.   The LCM of 5rs2 and 4st is ____ .
    A. 20rs2t B. 20s2
    C. 20rst D. 20rt
    Hint
  5.   Find the least common denominator for and
    A. 48e2f B. 4e2f
    C. 30e2f D. 36e2f
    Hint