chrisgk
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the result of 6:2(2+1) is 9 or 1?
What is the difference between the symbols ÷ / in division?
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chrisgk said:
Hi chrisgk, welcome to MHB,
Divisions and multiplications have equal precedence and are evaluated from left to right.
So 6:2(2+1) = (6:2)(2+1) = 9.
skeeter
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question ...
Doen't colon ratio symbol, " : ", behave like a vinculum?
i.e. $a:b+c = \dfrac{a}{b+c}$ ?
reason I ask is Wolfram Alpha interprets 4:5+6 as 4/11
Doen't colon ratio symbol, " : ", behave like a vinculum?
i.e. $a:b+c = \dfrac{a}{b+c}$ ?
reason I ask is Wolfram Alpha interprets 4:5+6 as 4/11
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skeeter said:
That's... unexpected...
Just saying:
View attachment 6669
It's kind of interesting to see that the OP's question is a perfect match for a meme on the internet...
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skeeter
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perfect match?
looks to me the OP posted a colon, $\colon$ , not a division symbol, $\div$
looks to me the OP posted a colon, $\colon$ , not a division symbol, $\div$
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chrisgk
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Who is the difference between the symbols ÷ / :
skeeter
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chrisgk said:
$\div$ and $/$ mean the same thing, the operation of division
$a \div b = a/b = \dfrac{a}{b}$
the colon symbol, $\colon$ , indicates a ratio ... a ratio is a comparison of two values achieved by division.