Add-8/15+4/15

Question

-4/15
-5 13/30
6.4
-7.39
-4.44

Answer 1

To add these fractions and numbers, we need to find a common denominator:

8/15 + 4/15 = (8 + 4)/15 = 12/15

Now let's add the negative numbers:

-4/15 + -5 13/30 = -4/15 - (150/30 + 13/30)
= -4/15 - 163/30

Now let's convert the fractions to have a common denominator:

-4/15 - (163/30) = -4/15 - (489/90)
= (-4 * 6)/(15 * 6) - 489/90
= -24/90 - 489/90
= (-24 - 489)/90
= -513/90

To simplify this fraction, we can divide the numerator and denominator by their greatest common divisor which is 9:

-513/90 = -(513/9)/(90/9)
= -57/10

Now let's add the decimal numbers:

6.4 + (-7.39) + (-4.44) = 6.4 - 7.39 - 4.44
= -5.34

Therefore, the final answer is:
12/15 -5.34 -57/10.