Question
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There were 7 pupils in a classroom. 4 went out. What fraction of the pupils were left in the classroom?

$latex \dfrac{4}{7}$

$latex \dfrac{2}{7}$

$latex \dfrac{7}{9}$

$latex \dfrac{3}{7}$
The correct answer is .
There were 7 pupils. 4 went out.
3 out of 7 pupils were left.
So, were left.