Question

1) put the appropriate number in the question mark to make the following statement true.

$\frac{2}{3} = \frac{?}{21}$
$\frac{3}{5} = \frac{36}{?}$
$\frac{4}{?} = \frac{24}{42}$
$\frac{?}{9} = \frac{16}{72}$
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Answer 1

Answer:

When displaying fractions in-line, for example \(\frac{3x}{2}\)

you can set a different display style:

\( \displaystyle \frac{3x}{2} \).

This is also true the other way around

\[ f(x)=\frac{P(x)}{Q(x)} \ \ \textrm{and}

\ \ f(x)=\textstyle\frac{P(x)}{Q(x)} \]