Question

express in simplest form 21 : 9
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Answer 1

Answer:

3 is the answer....

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Answer 2

Answer:

$\frac{7}{3}$

Step-by-step explanation:

firstly we convert ratio into a fraction : $\frac{21}{9}$

secondly, we simplify it

21 dividing by 3 we get 7

and 9 divided by 3 we get 3

so the answer we get $\frac{7}{3}$ in fractional form

now convert into a ratio that's 7:3

So, now the simplest form of 21:9 is 7:3.