# which is the greatest ratio of following 3:4 , 5:7 ,9:11 ,1:8

The given ratios are 3 : 4; 5 : 7; 9 : 11 and 1 : 8.
Which can be rewritten as .
To find the greatest number, we have to first find the L.C.M. of their denominators as;

Now we make the denominators of all given rational numbers same as;

So the greatest rational number is $\frac{504}{616}$ i.e. $\frac{9}{11}$.
Therefore the greatest ratio is 9 : 11.

• 1

9:11 is the greatest.

by k.premkailash

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