Question

Add these rational numbers
Pls note the denominator is negative

4/9 + 5/ (-9)​

Answer 1

4/9 + 5/(-9)

= 4/9 + (-5)/9

= (-1)/9

= -1/9 Answer

Answer 2

Find the least common denominator or LCM of the two denominators: LCM of 9 and -9 is

Next, find the equivalent fraction of both fractional numbers with denominator

For the 1st fraction, since 9 × 0 =,

5 9 5x0 9×0 = = 0

Likewise, for the 2nd fraction, since -9 × 0 =,

4 4x0 = 0

= -9 -9 × 0

Add the two like fractions:

0 + 0 = 0 + 0 = 0

So, 5/9 + 4/-9 = 0

So, 5/9 + 4/-9 = 0/1