Question

what must be added to 7 whole 1 by 6 to get 9 whole 1 by 9​

Answer 1

Answer:

1 whole 27 by 28

Step-by-step explanation:

Let the number be x

x + 7+1/6 = 9 +1/9

x = 9 - 7 + 1/9 - 1/7

x = 2- 2/56

x = (112 - 2)/56

x = 110/56

x = 55/28

x = 1+27/28

1 whole 27 by 28 must be added to 7 whole 1 by 6 to get 9 whole 1 by 9