1.

What does the shaded part of the following strip represent?

A.                  \[\frac{2}{7}-\frac{1}{7}+\frac{2}{7}=\frac{3}{7}\]
B.                  \[\frac{2}{7}+\frac{1}{7}-\frac{2}{7}=\frac{1}{7}\]
C.                  \[\frac{2}{7}+\frac{1}{7}=\frac{3}{7}\]
D.                  \[\frac{1}{7}+\frac{2}{7}+\frac{2}{7}=\frac{5}{7}\]  
Answer» E.


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