Question

please tell me what is the answer with solution of marked question and if you can help me in other questions also then please help​

Answer 1

if answer is correct mark as a Brainlist answer

Answer 2

Answer:

Step-by-step explanation:

a =2/3,b=-3/4,c=7/5

By verifying-

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

(2/3+(-3/4))+7/5=2/3+(-3/4+7/5)

(2/3-3/4)+7/5=2/3+(-3/4+7/5)

And do LCM of numbers inside brackets you will get answer!!!!!!

158/20is not equal to 99/129