What is $\frac{12}{15} \cdot \frac{3}{4}$ $12/15 * 3/4$ ?

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Answer 1 · 2016-04-05T11:19:36

You may turn this into $\frac{12 \times 3}{15 \times 4}$ $(12xx3)/(15xx4)$

$= \frac{36}{60}$ $=36/60$

You may simplify this by realizing that
$36 = 6 \times 6$ $36=6xx6$ and $60 = 6 \times 10$ $60=6xx10$
$=(cancel6xx6)/(cancel6xx10)=6/10$

Then because $6=2xx3$ and $10=2xx5$ :
$=(cancel2xx3)/(cancel2xx5)=3/5$

What is 12/15 * 3/41215⋅3412/15 * 3/4?