4. For the purposes of these Regulations—
(a)where any calculation under these Regulations results in a fraction of a penny, that fraction is, if it would be to the claimant’s advantage, to be treated as a penny, but otherwise it must be disregarded;
(b)where an employment and support allowance is awarded for a period which is not a complete benefit week and the applicable amount in respect of the period results in an amount which includes a fraction of a penny, that fraction is to be treated as a penny.