Question

Please answer this with steps the right answer I will mark brain list​

Answer 1

Answer:

Given

a=−11/27,b=4/9 and c=−5/18

a+(b+c)=(a+b)+c

Consider,

L.H.S.=a+(b+c)

=−11/27+{4/9+(−5/18)}

=−11/27+(4/9−5/18)

On simplification, we get

=−11/27+(8−5)/18

=−11/27+3/18

Taking L.C.M. we get,

=(−22+9)/54

=−13/54

R.H.S.=(a+b)+c

=(−11/27+4/9)+(−5/18)

On further calculation, we get

={(−11+12)/27}+(−5/18)

=(1/27)+(−5/18)

=(2−15)/54

=−13/54

Hence,

L.H.S.=R.H.S.

Hope it helps pls mark as brainliest

Answer 2

Step-by-step explanation:

a= -11/27 b= 4/9 c= -5/18

a + (b + c) = (a + b) + c

-11/27 + (4/9 + -5/18) = ( -11/27 + 4/9) + -5/18

-11/27 + (8/18 + -5/18) = ( -11/27 + 12/27) + -5/18

-11/27 + ( 8-5/18) = ( -11+12/27) + -5/18

-11/27 + 3/18 = 1/27 + -5/18

-11/27 - 1/27 = -5/18 - 3/18

-11 + - 1/27 = -5 + - 3/18

-12/27 = -8/18

-12 × 18 = -8 × 27

- 216 = - 216

.•. both sides are equal

.•. R. H. S. = L. H. S.