Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Mathematics
Mathematics
Problem
For any two non-zero positive integers
a
a
a
and
b
b
b
, which of the following relations is always true? a)
L
C
M
(
a
,
b
)
=
a
b
\mathrm{LCM}(a,b)=ab
LCM
(
a
,
b
)
=
ab
b)
H
C
F
(
a
,
b
)
×
L
C
M
(
a
,
b
)
=
a
b
\mathrm{HCF}(a,b)\times\mathrm{LCM}(a,b)=ab
HCF
(
a
,
b
)
×
LCM
(
a
,
b
)
=
ab
c)
H
C
F
(
a
,
b
)
+
L
C
M
(
a
,
b
)
=
a
+
b
\mathrm{HCF}(a,b)+\mathrm{LCM}(a,b)=a+b
HCF
(
a
,
b
)
+
LCM
(
a
,
b
)
=
a
+
b
d)
H
C
F
(
a
,
b
)
−
L
C
M
(
a
,
b
)
=
a
−
b
\mathrm{HCF}(a,b)-\mathrm{LCM}(a,b)=a-b
HCF
(
a
,
b
)
−
LCM
(
a
,
b
)
=
a
−
b
Browse the problem library