Question

The hcf and lcm of two numbers are 12 and 72 find ratio of the numbers

Answer 1

12
=2×6
=2×2×3

72
=2×36
=2×2×18
=2×2×2×9
=2×2×2×3×3

hcf=2×2×2×3×3=72

lcm=2×2×3=12