A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 5 years ago
7/8  3/20 it's about LCD
anonymous
 5 years ago
7/8  3/20 it's about LCD

This Question is Closed

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0the least common denominator is 4 multiply 7/8 by 5 and 3/20 by 2...then just add

radar
 5 years ago
Best ResponseYou've already chosen the best response.0Look like the LCD is 40. It is 40 as both 8 and 20 will divide into it and it is the smallest number that will do that as 8 won't go into 20

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0yeah but the choices says something like 7[3] 3[5]    8[3] 20 [5]

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0well it's hard to put it lemme say it..7over 8 multiplied by 3 over 3 and 3 over 20 multiplied by 5 over 5

radar
 5 years ago
Best ResponseYou've already chosen the best response.0Choices should include: 7(5) 3(2)    8 (5) 20 (2)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0that's what i'm trying to look for thankk yhuuu :) but i still dnt get it LOL

radar
 5 years ago
Best ResponseYou've already chosen the best response.0Well when you work it out you get 35/40  6/40 = 29/40 If you will review the above you will see that to convert to lowest common denominator you are actually only multiplying the fraction. In this case the firs was multiplied by 5/5 or 1, the second by 2/2 or 1, and when you multiply by 1 you don't change the value of the fraction.....just the appearance.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0oh well what about 11 8    20 15

radar
 5 years ago
Best ResponseYou've already chosen the best response.0Smallest number that both 20 and 15 will both go into is 60. LCD is 60 11 (3) 8 (4)    20(3) 15(4) 33 32 1    =  60 60 60
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.