Question

Find the HCF of the following numbers:
(a) $49.56$ (b) $120,144$ (c) $81,99$

Answer 1

$a.49=7\times 7,56=8\times 7,Therefore,HCF=7$

$120=12\times 2\times 5,144=12\times 2\times 6,HCF=12\times 2=24$

$81=9\times 9,99=9\times 11,HCF=9$