Question

what should be added to (3/7) to get 12.step by step explanation ​

Answer 1

Answer:

53/7+x=12 so x=12-53/7 then 84-53/7=31/7

so the answer is 31 /7

Answer 2

Step-by-step explanation:

let x be the unknown number

3/7 + x = 12

12 - 3/7 = x

= 84/7 - 3/7 = x

= 81/7

=11 4/7

Therefore , 11 4/7 should be added to 3/7 to get the sum as 12.