Summary HCM & LCM notes

Section 1 : HCF of 2 numbers
Section 2 : LCM of 2 numbers




10 hig

B
135 a 10 . a. 1 .
18 a 28 252




② # The 60. ①
as i
2 . 46 a 10 LCM of 2 numbers
is . If the
product
of the 2 numbers
③
is

3 . 33
a Iso , find the HCF .
.
3 120 a 150 600

product
--
HCF = 30
60

①too so
h
LCM

60 a 1141

% 60 a 114 :


·
114 5 648d540
3240
60
.




/ X
2
57
230
6 648 a 540 ↑
-
19 6 A :
2 x 3 x 52

⑳
h
15 3
2 B =
23 x 32 x7
/
LCM of A and B ?
- A 22 5 3
5

x7
:
x 3 x


B =
23 x 3

HCF of A and B ? .
7
A :
2
2
x 3x52


⑭ h
3
B 2x32x7
⑦
=


not a so
·.

lasop A

B
=




:
2x2

2 x 2
x 3x5x5

x2x3x3x7
.
5 The HCF two numbers If the product
=
of is 40. .




3
find
HCF 2x2 x
=
of the 2 numbers is 52800 , the LCM .




.
9 1024 ,
576 64

11 LCM =
60
1320
.




y xz = 180


LCM x HCF =
product of
2