Question

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Answer 1

#166 (a)

$\frac{4}{9} +\frac{2}{9} +1=\frac{4}{9} +\frac{2}{9} +\frac{9}{9}=\frac{15}{9}=1\frac{6}{9}=1\frac{2}{3}$

(б)

$\frac{4}{11} +3+\frac{3}{11}= \frac{4}{11} +\frac{3}{1} +\frac{3}{11}=\frac{4}{11} +\frac{33}{11} +\frac{3}{11}=\frac{40}{11}=3\frac{7}{11}$

#167 (a)

$3\frac{8}{17} +2\frac{13}{17}=\frac{59}{17}+\frac{47}{17}=\frac{106}{17}=6\frac{4}{17}$

(б)

$6\frac{9}{14}+2\frac{13}{14}=\frac{93}{14}+\frac{41}{14}=\frac{134}{14}=9\frac{8}{14}$