Question

evaluate the following by grouping the rational numbers using the associative and commutative properties of addition. 9/-11+5/9+(-7/11)+(-8/9)​

Answer 1

Answer-

9/-11+5/9+(-7/11)+(-8/9) given

= -9/11+5/9+(-7/11)+(-8/9)

= take lcm of 11,9

lcm = 99

= then,

-81+55+(-63)+(-88)/99 = -177/99