Question

find 8/7+(-6/11)+(-8/21)+5/22

Answer 1

Answer:

Step-by-step explanation:

let a = 8/7

    b = -6/11

    c = -8/21

    d = 5/22

now a + b = 8/7 +(-6/11)

   

= [8*11 - 6*7]/7*11

= [88-42]/77

= 46/77

= 276/462

now c + d = -8/21 + 5/22

= [-8*22 + 5*21]/22*21

= [-176 + 105]/462

= -71/462

a+b+c+d = [276/462] - [71/462]

= 205/462