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If 7a = 6b and ab ≠ 0, what is the ratio of a/7 to b/6?

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Re: If 7a = 6b and ab ≠ 0, what is the ratio of a/7 to b/6? [#permalink]
I chose C and I still don't understand either of the above posts.
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If 7a = 6b and ab ≠ 0, what is the ratio of a/7 to b/6? [#permalink]
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7 a = 6 b

this implies
$$\frac{a}{b}=\frac{6}{7}$$

We need to find a/7 : b/6

which is equal to $$\frac{a}{7}*\frac{6}{b}$$

OR $$\frac{a}{b}*\frac{6}{7}$$
NOW A/B= 6/7

Put values - $$\frac{6}{7}*\frac{6}{7}$$

$$=\frac{36}{49}$$

Hence c[m]

Please give Kudos if my post was of any help
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Re: If 7a = 6b and ab 0, what is the ratio of a/7 to b/6? [#permalink]
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Re: If 7a = 6b and ab 0, what is the ratio of a/7 to b/6? [#permalink]
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