Question

the lcm ( 28,63) is 252 ,then their hcf
a 28,
b, 7
c 9
d, 63
​

Answer 1

Answer:

lcm =252

HCF= ?

a x b = HCF x lcm

28 x 63 = HCF x 252

1764/252= HCF

HCF = 7 (b option)

this is answer

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