Question

health care career major
radiologic technoligist 1/10 0.1
athletic trainer 3/20
registered nurse 1/4 0.25
dental hygienist 3/25
respiratory therapist 4/25
physical therapist 11/50

1. a patient care technician (pct) in a newborn nursery weighs a set of quadruplets when they are born. the infants weigh 3 1/4 pounds (lb), 2 5/8 lb, 2 1/2 lb, and 3 3/8 lb. what is the total weight for all four infants?
2. a medical laboratory technician (mlt) uses 1/2 ounce (oz), 1/4 oz, and 3/8 oz of solution to perform three urinary sedimentation tests. how much total solution does she use?

Explanation:

8.

Step1: Convert mixed - numbers to improper fractions

$3\frac{1}{4}=\frac{3\times4 + 1}{4}=\frac{13}{4}$, $2\frac{5}{8}=\frac{2\times8+5}{8}=\frac{21}{8}$, $2\frac{1}{2}=\frac{2\times2 + 1}{2}=\frac{5}{2}$, $3\frac{3}{8}=\frac{3\times8+3}{8}=\frac{27}{8}$

Step2: Find a common denominator

The common denominator of 4, 8 and 2 is 8. $\frac{13}{4}=\frac{13\times2}{4\times2}=\frac{26}{8}$, $\frac{5}{2}=\frac{5\times4}{2\times4}=\frac{20}{8}$

Step3: Add the fractions

$\frac{26}{8}+\frac{21}{8}+\frac{20}{8}+\frac{27}{8}=\frac{26 + 21+20 + 27}{8}=\frac{94}{8}=\frac{47}{4}=11\frac{3}{4}$ pounds

Step1: Find a common denominator

The common denominator of 2, 4 and 8 is 8. $\frac{1}{2}=\frac{1\times4}{2\times4}=\frac{4}{8}$, $\frac{1}{4}=\frac{1\times2}{4\times2}=\frac{2}{8}$

Step2: Add the fractions

$\frac{4}{8}+\frac{2}{8}+\frac{3}{8}=\frac{4 + 2+3}{8}=\frac{9}{8}=1\frac{1}{8}$ ounces

Answer:

$11\frac{3}{4}$ pounds

9.