At the Johnson Zoo, 1/2 of the animals are primates. Of the primates, 5/6 are monkeys. What fraction of the animals at the Johnson Zoo are monkeys?

Isabelle is mixing red and blue paint to make purple paint she adds 3/10 of a fluid ounce of red to 12/25 of a fluid ounce of blue to make 1 1/30 fluid ounces of purple how many fluid ounces of red paint ounces of red paint will she need to make 3 fluid ounces of purple paint