math 115 least common mutiple and more as a review

The difintion of the least common multiple:

is the smallest natural number that is a multiple of the 2 groups.

The lcm of 240 and 450.

10 is a mutiple of both numbers

5 is a mutiple

2 is a mutiple.

2 is the lcm of 240 and 450.

perform the operation:

(-18+6)-(10+20)/14-8

use the order of operations method:
2 neg. = a +
work inside the () first then mutiply or divide.

18-6=12- 30/14-8
the 18 had the bigger number; the sign goes with the larger number.
-12-30= two negatives= a + sign. = a -42. 30+12=-42.
14-18=4
42/4=21/2 as a fraction is the lowest terms.

that is all for now.

Marie Zajac
soon to have a bachelor's degree in psychology.