Answer:
C - 45 is the LCM of 15 & 45
Step-by-step explanation:
Find the multiples:
15, 30, 45, 60
45, 90
They both have 45 in common
Answer:
7
Step-by-step explanation:
8 + 12 + 7 + 5 + 2= 34
34/5 =6.8
Rounded =7

You need to use the equation for adding fractions, which is

In this case, a=-1, b=3, c=-3, d=5.

simplify
answer: