What is bigger 75 kg or 110 Ib?

Those quantities can't be compared. "Kg" is a unit of mass,

whereas "lb" is a unit of weight. You can't convert mass to

weight without knowing the acceleration of gravity in the place

where the mass is.

For example:

- - 75 kg of mass weighs 418 lb on Jupiter.

- - 75 kg of mass weighs 62.6 lb on Mars

- - 75 kg of mass weighs 27.4 lb on the Moon.

- - 75 kg of mass weighs 165.3 lb on Earth.

- - 75 kg of mass weighs 11.1 lb on Pluto.

It all depends where you take your 75 kg.