1.

\[3\frac{1}{2}+2\frac{5}{7}\times \frac{7}{19}-\frac{1}{2}\div 2=\_\_\_.\]

A.  \[4\frac{1}{4}\]        
B.  \[4\frac{1}{2}\]          
C.  \[4\frac{3}{4}\] 
D. none of these
Answer» B.  \[4\frac{1}{2}\]          


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