s + t over 5 + 2(s + t) over 15

wanda57

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Joined
Nov 13, 2006
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6
s + t over 5 + 2(s + t) over 15
 

arthur ohlsten

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Joined
Feb 20, 2005
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854
[s+t]/5 + 2[s+t] /15
place both terms over common denominator 15
3[s+t]/15 +2[s+t]/15
place over common denominator
{ 3[s+t]+2[s+t] } /15
combine , or factor out [s+t]
5[s+t]/15
divide numerator and denominator by 5
[s+t]/3 answer
Arthur
 
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