answersLogoWhite

0


Best Answer

40 is the Least Common Denominator of 3/10 and 7/8, since it is the Least Common Multiple of 8 and 10. LCDs are usually used to add two fractions, and if that is what you are trying to do, 3/10 + 7/8 = 12/40 + 35/40 = 47 / 40 = 1 7/40.

User Avatar

Wiki User

14y ago

Still curious? Ask our experts.

Chat with our AI personalities

SteveSteve
Knowledge is a journey, you know? We'll get there.
Chat with Steve
RafaRafa
There's no fun in playing it safe. Why not try something a little unhinged?
Chat with Rafa
JordanJordan
Looking for a career mentor? I've seen my fair share of shake-ups.
Chat with Jordan
More answers
User Avatar

Wiki User

14y ago

15. Because it is the smallest number that both 3 (from 1/3) and 5 (from 3/5) divide into.

User Avatar

User Avatar

Wiki User

12y ago

The LCD would be 56. The first fraction would read: 88/56 and the second fraction would read: 21/56

User Avatar

User Avatar

Wiki User

15y ago

21.

User Avatar

Add your answer:

Earn +20 pts
Q: What is the LCD of 3 over 10 and 7 over 8?
Write your answer...
Submit
Still have questions?
magnify glass
imp