You would have to make the numbers have the same denominator. So you would have -15/20 + 4/20
Then you would have to put the sign of the higher number on it, So you would have -15/20 + 4/20 = -11/20
The factors of 8: 1, 2, 4, and 8
The factors of 12: 1, 2, 3, 4, 6, and 12
Common factors are shared between them:
1, 2, and 4
I think that the most accurate one is trial 3 since it is the least incorrect and closest percent-wise to the actual correct density of the metal.
Hope this helps!
Answer:
6:1:2.
Step-by-step explanation:
If Ben's score is x then Abel's is 6x and Cal's is 6/3 = 2x.
Then Abel's to Ben's to Cal's
= 6x : x : 2x
= 6:1:2.