3 years ago

Can ratios have decimals in them or do all the numbers have to be integers? E.g. is 7.8:1.3:6.5 a valid ratio?

1 answer:

5 0

What you have is a valid ratio in theory, but it might be easier to understand if it were simplified to integers:

78:13:65

It also depends on what your teacher is asking of you.

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<img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B3%20%7Bw%7D%5E%7B6%7D%20%20%7Bv%7D%5E%7B5%7D%20%7D%7B15%20%7Bw%7D%5E%7B2%7D%20v%7

ehidna [41]

Breaking down:
$\frac{3}{15} = \frac{1}{5}$
${w}^{6} \div {w}^{2} = {w}^{4}$
${v}^{5} \div v = {v}^{4}$

Therefore,
$\frac{3 {w}^{6} {v}^{5} }{15 {w}^{2}v } \\ = \frac{{w}^{4} {v}^{4} }{5}$

Hope this helps. - M

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