Question

(iii) What should be subtracted from1/12 to get 7/8
(iv) What should be subtracted from8\13 to get -31\13
(v) What should be subtracted from 1\10 to get -5​

Answer 1

Answer:

[iii] -19/24

[iv] 3

[v] 51/10

Step-by-step explanation:

[iii] 1/12-x=7/8

   -x=7/8-1/12

Take LCM of 8 and 12.

LCM of 8 and 12 =96.

    -x=7x12/8x12- 1x8/12x8

    -x=84/96- 8/96= -76/96= -19/24.

[iv]  8/13-x=-31/13

   -x= -31/13-8/13

   -x= -39/13

   -x= -3[-[minus] -[minus] gets cancelled]

   x=3.

[v]  1/10-x=-5

     -x= -5-1/10

    Take LCM of 5 and 10

   LCM of 5 and 10 is 10.

   -x= -5x10/1x10 - 1/10

  -x= -50/10-1/10= -51/10[-[minus] -[minus] gets cancelled]

  x=51/10.