Example:

Look at the denominator of the fractions, and then see whether there is a common prime number associated with them.
In this example, since 5 and 9 (3*3) do not have any common prime numbers, you just multiply these numbers together and get 45.
There, we just found the LCD of fractions.
Answer:
67
Step-by-step explanation:
took the test
Answer:
cool
Step-by-step explanation:
Fraction of students that opted for French = 
The total number of students = 150
Fraction of students that opted for German = 
Fraction of students that opted for Italian = 
Fraction of students that opted for French = 1 - Fraction of students that opted for German - Fraction of students that opted for Italian
Fraction of students that opted for French = 
Fraction of students that opted for French = 
Fraction of students that opted for French = 
Learn more here: brainly.com/question/18819021