Question

identify the pairs of number which are co prime and find their hcf and lcm a 30,25 b 40,27 c 6,7 d 120,49​

Answer 1

Answer:

hcf is 1 for all.  LCM of them are 1080,42 and 5880 respectively

Step-by-step explanation:

b,c,d are all co prime pairs  as they do not have any common factors other than one

hence HCF of all these co primes are 1

LCM of co prime numbers = product of numbers (since HCF=1)

LCM of 40 and 27 is 40*27=1080

LCM of 6 and 7 is 6*7=42

LCM of 120 and 49  120*49=5880