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Message Subject Math: 6÷2(1+2) = ?
Poster Handle Anonymous Coward
Post Content
what it comes down to is that some people say that the expression is the same as (6 ÷ 2) * (1+2) and some people say that it means 6 ÷ (2 * (1+2))

BUT WHICH ONE IS CORRECT????
 Quoting: Anonymous Coward 31519086


It means 6 ÷ (2 * (1+2))

This is proven with Distribution Property. Therefore, the parentheses are not required and the initial equation is written 6 ÷ 2(2+1).
Leading fractions absolutely require parentheses as in the example (1/2)n below.

Also proven with common notation, ie,:
1/2n = 1/(2n)
0.5n = (1/2)n or simply n/2
 
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