How would I approach this problem?

I thought to multiply the fractions 14/20 and 6/20 or 7/10 and 3/10.

Fran the Fearless has a wellknown act at a local zoo. As part of the act, Fran handles a scary animal that she picks at random out of the Box of Terror. The following animals are in the box: 14 poisonous snakes, 10 nonpoisonous snakes, 6 poisonous spiders, and 7 nonpoisonous spiders. What is the probability that the animal Fran picks is poisonous or is a spider? Do not round intermediate computations, and round your answer to the nearest hundredth. [i] xsavi