A medical unit has 18 patients.Eight have type O blood. Five have type A blood. Two have type AB blood. Three have type B blood. Write the fractions that describe the portions of the medical unit that have each blood type

the numerator is the amount of the blood type

the denominator is the total number

For example,

type O: 8/18
and so on

8/18 = 2/9 have Type O

5/18 have Type A

Take it from there.

To write the fractions that describe the portions of the medical unit that have each blood type, we need to find the portion of patients with each blood type out of the total number of patients.

Given data:
Total patients: 18
Type O blood: 8
Type A blood: 5
Type AB blood: 2
Type B blood: 3

Fraction for patients with type O blood:
Number of patients with type O blood = 8
Total number of patients = 18

Fraction for type O blood = 8/18

Fraction for patients with type A blood:
Number of patients with type A blood = 5
Total number of patients = 18

Fraction for type A blood = 5/18

Fraction for patients with type AB blood:
Number of patients with type AB blood = 2
Total number of patients = 18

Fraction for type AB blood = 2/18

Fraction for patients with type B blood:
Number of patients with type B blood = 3
Total number of patients = 18

Fraction for type B blood = 3/18

To find the fractions that describe the portions of the medical unit with each blood type, we need to divide the number of patients with each blood type by the total number of patients.

1. Type O blood: There are 8 patients with type O blood, so the fraction is 8/18.

2. Type A blood: There are 5 patients with type A blood, so the fraction is 5/18.

3. Type AB blood: There are 2 patients with type AB blood, so the fraction is 2/18.

4. Type B blood: There are 3 patients with type B blood, so the fraction is 3/18.

So, the fractions can be written as:

Type O blood: 8/18
Type A blood: 5/18
Type AB blood: 2/18
Type B blood: 3/18