divide 5/8 by 150, to see how thick each is, that'll give you 150 even pieces that add up to 5/8
[tex]\bf \cfrac{\frac{5}{8}}{150}\implies \cfrac{\frac{5}{8}}{\frac{150}{1}}\implies \cfrac{5}{8}\cdot \cfrac{1}{150}\implies \cfrac{1}{8\cdot 30}\implies \cfrac{1}{240}[/tex]