-2 over three + -4 over 5

Okay

Times the demominators 5 and 3 = 15

What do i time 3 by to get 15 = 5

so -2/3 becomes -10/15

What do I times 5 by to get 15 =3

so -4/5 becomes -12/15

Now I have -10/15 + -12/15 = -22/15

Can't be simplified so the answer is

-22/15 or -1 and 7/15

I have a homeworkhelp
website
secondteacher

Is this what you are trying to say ?

-2 over three + -4 over 5
= (-2/3) + (-4/5)
= (-2/3)*(5/5) + (-4/5)*(3/3)
= (-10/15) + (-12/15)
= -22/15

I hope on "your" homework-help website you explain things more clearly.

( I checked it out. If it is "free", why does one have to register ?)

To solve the expression -2/3 + (-4/5), we need to find a common denominator and then add the fractions together. Here's how to do it step by step:

1. Finding a common denominator:
The denominators of the two fractions, 3 and 5, are already different. To find a common denominator, we need to find the least common multiple (LCM) of 3 and 5, which is 15.

2. Converting the fractions to have a common denominator:
To convert -2/3 and -4/5 to have the common denominator of 15, we need to multiply the numerator and denominator of each fraction by a suitable factor.

For -2/3:
Multiply the numerator and denominator by 5:
-2/3 = (-2 * 5) / (3 * 5) = -10/15

For -4/5:
Multiply the numerator and denominator by 3:
-4/5 = (-4 * 3) / (5 * 3) = -12/15

3. Adding the fractions:
Now that both fractions have the same denominator, you can simply add the numerators together while keeping the denominator the same:
-10/15 + (-12/15) = (-10 - 12) / 15 = -22/15

So, the simplified answer to -2/3 + (-4/5) is -22/15.