Respuesta :

[tex]\bf \cfrac{5}{16}+\cfrac{7}{8}\impliedby \textit{our LCD is 16}\implies \cfrac{(1)5+(2)7}{16}\implies \cfrac{5+14}{16} \\\\\\ \cfrac{19}{16}\implies 1\frac{3}{16}[/tex]
tdpuppies14
Behind all the sentences and misconceptions, this really is just a simple addition problem. The problem is asking us to add the two fractions, or widths together, to calculate the total width or thickness as they phrase it. 

5/16 + 7/8 = 5/16 + 14/16 = 19/16 which simplifies to 1 3/16 as a mixed fraction.

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