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Posted by on Friday, April 20, 2012 at 2:13pm.

Using appropriate prperties find:
4/5*(-2/3)- 4/5* 1/2 + 1/7* 2/3

  • Maths - , Friday, April 20, 2012 at 2:22pm

    4/5*(-2/3) = -8/15
    4/5* 1/2 = 4/10 = 2/5
    1/7* 2/3 = 2/21

    LCD = 3*5*7 = 105

    -8/15 - 2/5 + 2/21 = -56/105 - 42/105 + 10/105 = -88/105

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