The least among the ratio 5:6,7:8,2:3 and 9:17 is
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9:17 is the answer
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The least among the ratio 5:6,7:8,2:3 and 9:17 is 9 : 17
Solution:
Given, set of ratios are 5 : 6, 7 : 8, 2 : 3, and 9 : 17.
We have to find smallest ratio among the given ratios.
Now, given ratios can be written as
For comparisons we have to convert the denominators as same.
So, now we have to find L.C.M of denominators = L.C.M of (6, 8, 3, 17)
Write the numbers as multiplication of prime factors
Now L.C.M is given as
Now, multiply each ratio with
Now, as denominators are same, we can compare numerators.
Numerators are, 5 x 68, 7 x 51, 2 x 136, 9 x 24 → 340, 357, 272, 216.
Here, least number is 216.
Hence, least ratio is 9 : 17.
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