add: 3/2a-5/4b+2/5c, 2/3a-7/2b+7/2b+7/2b+7/2
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Step-by-step explanation:
3/2a-5/4b+2/5c+2/3a-7/2b+7/2b+7/2b+7/2=(3/2+2/3)1/a+(-5/4-7/2+7/2+7/2)1/b+2/5c+7/2
=((9+4)/6)1/a+((-5+14)/4)1/b+2/5c+7/2
=13/6a+9/4b+2/5c+7/2
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