Question

.please give correct an answer according to class 8 . and even give the solution like how did u get answers . please give answer only if u know or don't plese​
I need even explanation how the answer came .​​​​

Answer 1

Answer:

ok

Step-by-step explanation:

Ans (a)Firstly, to compare these rational no.s, we need to find the LCM to make their denominators equivalent(same). So for that ,we need to change the denominators into positive by multiply the rational no.s by (-1)/(-1).

So now all the denominators are posiitive and their LCM is 84

So it will be first like -4/7*12/12(we are multiplying to make the denominator 84)=-48/84  and so for others= -9/14*6/6 = -54/84, -13/28*3/3=-39/84 and -23/42*2/2=-46/84

So , give me an answer , which is bigger -:  -1 or -2?  Its -1 as its negative.

So -39/84 > -46/84 > -48/84 > -54/84 ( in negative the lower negative no. is bigger)

OR

13/-28>-23/42>-4/7>-9/14

(b) Same as (a). So LCM = 48, so -3/4,-5/12,-7/16,-9/24= -36/48,-20/48,-21/48, -18/48

So, -18/48>-20/48>-21/48>-36/48

OR

  9/-24>5/-12>-7/16>-3/4

(c) same, with LCM 36, The no.s are -16/36 , -15/36 , -14/36 , -24/36

So -14/36>-15/36>-16/36>-24/36

OR

7/-18>-5/12>4/-9> -2/3

PLz mark as brainliest for so much explanation