id	summary	reporter	owner	description	type	status	priority	milestone	component	resolution	keywords	cc	work_issues	upstream	reviewer	author	merged	dependencies	stopgaps
8111	gcd of rationals is trouble	pdehaye	AlexGhitza	"The GCD of rationals is still unclear (see trac 3214), and leads to definite problems with reduce(). 

{{{
K.<k>= QQ[];
print gcd(64,256)
print gcd(K(64),K(256))
print gcd(64*k^2+128,64*k^3+256)
frac = (64*k^2+128)/(64*k^3+256)
frac.reduce()
print frac
}}}
gives
{{{
64
1
1
(64*k^2 + 128)/(64*k^3 + 256)
}}}
The last line in particular is false, according to me."	defect	new	major	sage-5.10	basic arithmetic					N/A