Question 879180
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Hi
{{{1/1 + 1/2 = 1/x}}} |Multiplying thru by 2x so as all denominators = 1
    2x + 1x = 2
      3x = 2
       x = 2/3 hr together
{{{1/1 + 1/1 + 1/2 = 1/x}}}
    2x + 2x + 1x = 2
      5x = 2
       x = 2/5 hr together