How do you solve $\frac { 1} { n } = \frac { 5} { 30}$ ?

Question

930 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2017-04-03T04:02:19

Cross-multiply and isolate for $n$ . In this case, $n=6$ .

What we can do is cross-multiply.

This implies that if $a/b=c/d$ can be $ad=cb$ .

So let's do that.

If...

$1/n=5/30$

... then we can do...

$1(30)=5n$

After that, we can isolate for $n$ .

$30=5n$

$6=n$

As a result, $n=6$ . We can double check this by subbing in the equation.

$1/n=5/30$

$1/(6)=5/30$

$0.166=0.166$

Therefore, we can conclude that $n=6$ .

How do you solve \frac { 1} { n } = \frac { 5} { 30}\frac { 1} { n } = \frac { 5} { 30}?