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How do I solve proportions? Here’s my questions:

1. x/8=5/16
2. 5/12=15/x

User Kathleen
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1 Answer

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Proportions are very simple once you get the hang of them! What you do is cross multiple. :)

1. x/8=5/16

You first start by multiplying x and 16

Then multiply 5 and 8

So now you have 16x=40

Finally divide 16 from each side

You get: x+0.4!

2. 5/12=15/x

Remember to cross-multiply!

Now we have 5x=180

Next divide 5 from each side

You get: x=36!

User Larsschwegmann
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6.2k points