Question 330369
Two words, common denominators. 
{{{(2/3+4/5)/(3/4-1/2)=(10/15+12/15)/(3/4-2/4)}}}
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{{{(2/3+4/5)/(3/4-1/2)=(22/15)/(1/4)}}}
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{{{(2/3+4/5)/(3/4-1/2)=(22/15)*(4/1)}}}
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{{{(2/3+4/5)/(3/4-1/2)=88/15}}}