please tell it's compulsory please
Answers
Answer:
1/(a) 115
Step-by-step explanation:
5/575 = 5×5×23
2/920 =2×2×2×5×23
common no.=5×23=115
Step-by-step explanation:
5|575
5|155
|31
5|920
2 |184
2 |92
2 | 46
23
575=5*5*31
920=5*2*2*2*23
HCF=5
------------------------------------
2|72
2|36
2|18
3|9
3
2|144
2|72
2|36
2|18
3|9
3
2|252
2|126
3|63
3|21
7
72=2*2*2*3*3
144=2*2*2*2*3*3
252=2*2*3*3*7
HCF=2*2=4
---------------------------------------------
70=2×5×7
105=3×5×7
175=5×5×7
HCF=5×7=35
-----------------------------------------------------
126=2*3*3*7
154=2*7*11
182=2*7*13
252=2*2*3*3*7
HCF=2*7=14
----------------------------------
3)..
a)
2|16
2|8
2|4
2|2
1
2|30
3|15
5
2|42
3|21
7
16=2×2×2×2
30=2×3×5
42=2×3×7
LCM=2⁴×3×5×7
=3360
-------------------------------------
b).
2|28
2|14
7
2|44
2|22
11
2|132
2|66
3|33
11
28=2×2×7
44=2×2×11
132=2×2×3×11
LCM=2²×3×7×11
=924