Bruno evaluated 1 9/13−6/7 .Which of these is correct? If the difference of 1 9/13 and his answer is 6/7 , Bruno's answer is . If the sum of his answer and 6/7 is 1/2 , Bruno's answer is . If his answer is the sum of 1 9/13 and 6/7 , Bruno's answer is .

Answer 1

To solve these equations, we need to find a value that satisfies each equation given the information provided.

1) The difference between 1 9/13 and Bruno's answer is 6/7.
To find Bruno's answer, we subtract 6/7 from 1 9/13:
1 9/13 - 6/7 = (13/13 + 9/13) - 6/7 = 22/13 - 6/7 = (22*7 - 6*13)/(13*7) = (154 - 78)/91 = 76/91

Therefore, Bruno's answer is 76/91.

2) The sum of Bruno's answer and 6/7 is 1/2.
To find Bruno's answer, we subtract 6/7 from 1/2:
1/2 - 6/7 = (7/14 - 12/14) = -5/14

Therefore, Bruno's answer is -5/14.

3) Bruno's answer is the sum of 1 9/13 and 6/7.
To find Bruno's answer, we add 1 9/13 and 6/7:
1 9/13 + 6/7 = (13/13 + 9/13) + 6/7 = 22/13 + 6/7 = (22*7 + 6*13)/(13*7) = (154 + 78)/91 = 232/91

Therefore, Bruno's answer is 232/91.