MegK0sepu3terdan MegK0sepu3terdan

09-03-2017
Mathematics

contestada

What’s the least common multiple for each group of numbers?
a. 6 and 15
b. 4 and 11
c. 6, 9, and 12
d. 8, 10, and 20

Respuesta :

ahonyek ahonyek

09-03-2017

you have to use the prime factorization
A, 6= 2*3 15=3*5
You can see that three is common in both so you do not need both
LCM=2*3*5=30

B, 4=2*2 11 is a prime so
LCM=4*11=44

Hope this will help you solve C and D too.

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