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Posted by on Sunday, July 4, 2010 at 8:14pm.

Can anyone show me how to worj this I am lost Perform the subtraction :7/9-(15/8) thank you in advance

  • math - , Sunday, July 4, 2010 at 8:20pm

    First we need to find the common denominator.

    7/9 = 56/72
    15/8 = 135/72

    56/72 - (135/72) = -(79/72) = -(1 7/72)

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