Let w represent white mice and G represent gray mice then,
from question we have:
\(\frac{1}{2}\) W = \(\frac{1}{8}\) T
or, w = \(\frac{2}{8}\) T = \(\frac{1}{4}\) T

\(\frac{1}{3}\) G = \(\frac{1}{9}\) T
or, G = \(\frac{3}{9}\) T = \(\frac{1}{3}\) T

Hence \(\frac{1}{4}\) T divided by \(\frac{1}{3}\) T = \(\frac{3}{4}\)
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C

C

C