Answer :

jfjeld
You need to make 20 each of their denominators,
Rabbits: 2/5 (4/4) = 8/20 So Eight rabbits
Fish: 1/2 (10/10) = 10/20 So Ten fish
Dogs: 1/10 (2/2) = 2/20 So Two dogs
To check this you should add 8 + 10 + 2 = 20 which means we got it right

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