Add -8/15 + 4/15. (1 point)
-4/15
-12/15
4/15
4/5
The sum of -8/15 and 4/15 is -4/15.
-1 3/10 + (-4 2/15).
-5 1/6
-5 1/5
-2 5/6
-5 13/30
To add -1 3/10 and -4 2/15, we first need to convert both fractions to a common denominator. In this case, the common denominator is 30.
-1 3/10 is equivalent to -10/10 + 3/10 = -13/10.
-4 2/15 is equivalent to -60/15 + 2/15 = -58/15.
Now we can add the fractions:
-13/10 + (-58/15) = (-13*3)/(10*3) + (-58*2)/(15*2)
= -39/30 + (-116/30)
= -155/30
Simplifying, we get:
-155/30 = -5 5/30 = -5 1/6
Therefore, the sum of -1 3/10 and -4 2/15 is -5 1/6.
Add -1.2 + 7.6 (1 point)
6.4
8.8
-6.4
-8.8
The sum of -1.2 and 7.6 is 6.4.
Add - 4.85 + (-2.54)
-7.39
-2.31
2.31
-6.39
The sum of -4.85 and -2.54 is -7.39.
Add 4.6 + (-9.04). (1 point)
-13.64
4.44
- 4.44
13.64
The sum of 4.6 and -9.04 is -4.44.
To add -8/15 and 4/15 together, you need to have a common denominator. In this case, both fractions already have the same denominator, which is 15.
To add the numerators (-8 and 4), you simply sum them.
-8/15 + 4/15 = (-8 + 4)/15 = -4/15
So the correct answer is -4/15.