There are animals on the farm half are pigs one fifth are sheep what fraction are cows

To find the fraction of animals that are cows on the farm, we need to determine how many cows there are.

We are given that half of the animals are pigs, which means pigs make up 1/2 of the total number of animals.

We are also given that one-fifth of the animals are sheep, which means sheep make up 1/5 of the total number of animals.

To find the fraction that represents cows, we need to subtract the fraction representing pigs and sheep from 1 (since the total fraction must add up to 1, or the whole):

1 - (1/2) - (1/5)

To subtract fractions, we need a common denominator. In this case, the common denominator is 10:

1 - (5/10) - (2/10)

Performing the subtraction:

1 - (5 + 2)/10

1 - 7/10

The fraction that represents cows on the farm is 3/10.

(10/10) - (5/10) - (2/10) = ?