Question

1 Find out H. C. F and L.cm
of Rs 4.20p, Rs 5.60p and Rs 6.30p
​

Answer 1

We can write,

6=2∗3

and 20=2∗2∗5=22∗5

So, LCM will be each of prime factor with their highest power ,

=22∗3∗5=60

HCF will be the common prime factor between them with least power,

=2