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Is the proportion true or false? Why? 3/6=4/8

User Sybear
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2 Answers

4 votes
True
And 3/6= 4/8 than you listen to what the other guy said
User Dragoljub
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4 votes

To check if a proportion is true, we simply have to use "cross-multiplication", that is in our case multiply the second denominator times the first numerator, and the second numerator by the first denominator, and see if we get an equality:

3 / 6 = 4 / 8

Then cross multiplying:

3 * 8 = 4 * 6

24 = 24

We can confirm that this proportion is TRUE because we got the same value on the left and on the right of the equal sign.

User Victor Carmouze
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