\( \definecolor{colordef}{RGB}{249,49,84} \definecolor{colorprop}{RGB}{18,102,241} \)
Let \( P(G) = 0.6 \), \( P(H) = 0.2 \) and \( P(G \text{ and } H) =0.1\)
Calculate \( P(G \text{ or } H) \).
\( P(G \text{ or } H) = \)