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Question

Compare the following ratio:

9:20and8:13


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Solution

Comparing the ratios :

We have, 9:20=920 and 8:13=813

Since, LCM of 20and 13 is 260

Now to make denominator of 920as 260 we multiply the numerator and denominator by 13

9×1320×13=117260

Now to make denominator of 813as 260 we multiply the numerator and denominator by 20

8×2013×20=160260

Now, we will compare the numerators of 117260and160260

Since, 117<160

Then, 117260<160260

920<813

Hence, the ratio 8:13is greater than 9:20


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