Express the $4.5 k m : 450 m$ in the simplest form.

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Solution

Step I - Let's convert $k m$ into $m$ .
As, $1 k m = 1000 m$
So, $4.5 k m = 4.5 \times 1000 m = 4500 m$
Step II - Let's write $4500 m : 450 m$ in the fraction form.
We can write, $4500 m : 450 m$ = $\frac{4500}{450}$
Now we know that $450$ is the highest common factor which can divide both the numbers.
So, $\frac{4500}{450}$ = $\frac{4500 \div 450}{450 \div 450}$ = $\frac{10}{1}$
Thus, the simplest form for $4500 m : 450 m$ in fraction = $\frac{10}{1}$
Hence, the $4.5 k m : 450 m$ in the simplest form = $10 : 1$ .

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