Question

2. On Friday, 3 of the students in class wore red shirts. What fraction of the students did NOT wear red shirts? 1 } } } 7 7 }

Answer 1

When we express a proposition, the denominator determines the total

for example

$\frac{2}{7}$

is a part of total

$\frac{7}{7}$

is 2/7 wore red shirt, how much is left for the total?

$\begin{gathered} \frac{7}{7}-\frac{2}{7} \\ \\ \frac{7-2}{7}=\frac{5}{7} \end{gathered}$

5/7 Did not wear red shirts