1.

Simplify : $$1 + {1 \over {1 + {2 \over {2 + {3 \over {1 + {4 \over 5}}}}}}}$$

A. $1\frac{{11}}{{17}}$$
B. $1\frac{{5}}{{7}}$$
C. $1\frac{{6}}{{17}}$$
D. $1\frac{{21}}{{17}}$$
Answer» B. $1\frac{{5}}{{7}}$$


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