Hi everybody,(adsbygoogle = window.adsbygoogle || []).push({});

I just want to make something clear: does juxtaposition always show multiplication? For example 2ab(c+d)e(pi)=2*a*b*(c+d)*e*(pi) ? Generally it applies to any multiplication as long as there are no confusions,despite the number of factors?(obviously 23 is not 2*3!) ?

And one more thing: when we write

a+b

---- we mean (a+b):(c-d) ? In other worlds the fraction bar shows that

c-d

everything that is above it, after it's calculated ,is divided with the final value of the expression under it, right? Is this always called a fraction?For example when a is irrational is it called a fraction? In any case every rule applied to fractions applies to this kind of "fraction" too? They are general rules of division?(example a a*c

- = ----

b b*c )

Thanks

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Does juxtaposition always show multiplication?

**Physics Forums | Science Articles, Homework Help, Discussion**