Question

help me with maths !!!

$\frac{9m + 3n}{9m {}^{2} + 6mn + n {}^{2} }$
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Answer 1

3
———
3m + n
This is how the answer look like it’s basically the division thingy but I don’t have the option

Explain
: we factor the expressions
Then we cancel out 3m+n numerator and denominator