Question 823434
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Hi,
 A man can weed his yard in 3 hours. His son can do the same job in 2 hours.
 how long {{{highlight_green(x)}}} would it take them if they worked together?
 {{{ 1/3 + 1/2 = 1/x}}}   ||Multiplying thru by 6x so as all denominators = 1
      2x + 3x = 6
       5x = 6
        x = 6/5 hr  0r  1 <sup>1</sup>&frasl;<sub>5</sub> hr 0r 1hr and 12min