document.write( "Question 754822: Tina can paint a fence in 8 hours. Tom can paint the same fence in 4 hours. How long will it take them to paint the fence if they work together? \n" ); document.write( "
Algebra.Com's Answer #459388 by sachi(548)\"\" \"About 
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Tina can paint a fence in 8 hours.
\n" ); document.write( "so Tina can paint 1/8 parts in 1 hr
\n" ); document.write( "Tom can paint the same fence in 4 hours.
\n" ); document.write( "so Tom can paint 1/4 parts in 1 hr
\n" ); document.write( "so both can paint 1/8+1/4=3/8 parts in 1 hr
\n" ); document.write( "so the total time taken by both to paint the fence=8/3hrs
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