She will stretch all the parts of the body that \(\frac{2}{3}\) is a multiple of
She will not strech her neck, \(\frac{1}{2}\) multiplied will not give\(\frac{2}{3}\)
She will however stretch her legs, this will be the second time this hour:
\(\frac{1}{3}+\frac{1}{3} =\frac{2}{3}\)
She will also stretch her legs, this will be the forth time this hour:
\(\frac{1}{6}*4 =\frac{4}{6}=\frac{2}{3}\)