answersLogoWhite

0

The LCD, or Lowest Common Denominator, is the smallest multiple of each of the denominators of a set of fractions. So, assuming that 2, 4 and 5 are denominators of fractions (1/2, 1/4 and 1/5, for example), the LCD would be 20, because 20 is the lowest number that 2, 4 and 5 multiply into. So, your new fractions would be 10/20, 5/20 and 4/20. The purpose of finding the LCD is to allow for multiplying fractions together, or simply comparing them easily.

User Avatar

Wiki User

14y ago

Still curious? Ask our experts.

Chat with our AI personalities

JordanJordan
Looking for a career mentor? I've seen my fair share of shake-ups.
Chat with Jordan
BeauBeau
You're doing better than you think!
Chat with Beau
ProfessorProfessor
I will give you the most educated answer.
Chat with Professor
More answers

The least common multiple of 2, 4, and 7 is 28.

User Avatar

Wiki User

13y ago
User Avatar

LCD(4, 7, 12) = 84

User Avatar

Wiki User

13y ago
User Avatar

84

User Avatar

bob

Lvl 2
4y ago
User Avatar
User Avatar

bob

Lvl 1
4y ago
WOW BOB! THANKS!
User Avatar

bob

Lvl 1
4y ago
NO PROBLEMO

28

User Avatar

Wiki User

13y ago
User Avatar

Add your answer:

Earn +20 pts
Q: What is the lcd of 7 4 and 2?
Write your answer...
Submit
Still have questions?
magnify glass
imp