How to compute LCM of fractional numbers on paper?

[Faizan Tahir Butt]

l.c.m of fractional numbers

How to compute LCM of fractional numbers on paper?

 

[VSWR]

fraction lcm

By using just a pencil and a piece of paper instead of a computer? Yes you can:

http://www.ltcconline.net/greenl/courses/187/b/mixedFractionAdditionSubtraction.htm

 

[kalyanram]

Re: Lcm

Hi Faizan,
It should be LCM(numerators)/GCF(denominators)

Let me prove it for you.

Proof:
Let the fractions be a/b and c/d.
Now LCM(a,c) is divisible by a & c.
Now GCF(b,d) divides both b & d.

Hence the fraction LCM(a,c)/GCF(b,d) when divided by both a/b and c/d will
yeild a Natural number.

Where
LCM stands for Least Common Multiple.
GCF stands for Greatest Common Factor repectively.

~Kalyan.