Question

HCF and LCM of
1.60, 75
2.45,30,75
3.15,30
4.17,51

Answer 1

1. 60)75(1
60
__
15)60(4
60
__
*
Hence,HCF of 60&75=15
similarly
HCF of ;
2. 45,30&75=15
3. 15&30=15
4. 17&51=17
Now,LCM
1. 15 |60,75
_____
4, 5
LCM=15*4*5=300
Similarly,LCM of
2. 45,30&75=450
3. 15,30=30
4. 17,51=51