Is it ok if i cut augmentin (amoxicillin and clavulanate) pill in pieces before take it or there'll be any side effects? should i eat first?

Augmentin (amoxicillin and clavulanate): taking yogurt to prime the gut before taking Augmentin (amoxicillin and clavulanate) is recommended. Crushing it or deciding the pull in half does not effect or interfere with the efficacy of the medicine. Priming the gut with yogurt or taking it with probiotics reduces its side effects

Some can,some cannot: Some forms of Augmentin (amoxicillin and clavulanate) CANNOT be crushed - if the bottle says XR or “extended-release” anywhere, that is key. However, that information may be hidden in the fine print of the package labelling, so your best bet is going to be to ask your doctor or local pharmacist for guidance with the product you have in your possession; some Augmentin (amoxicillin and clavulanate) products can be crushed and cut, some cannot.