Question

Evaluate the equation. n- 1 1/3 = 5/7

A. n = 2 1/21
B. n = 1 6/21
C. n = 2 3/5
D. n = 2 3/21​

Answer 1

The choice A .

`n = 2 (1)/(21)`

Explanation:

`n - 1 (1)/(3) = (5)/(7) \\ \\ n - (4)/(3) = (5)/(7) \\ \\ n = (5)/(7) + (4)/(3) \\ \\ n = (15)/(21) + (28)/(21) \\ \\ n = (43)/(21) = 2 (1)/(21)`

Answer 2

n = 2 1/21, so A.

n - 28/21 = 15/21

n = 43/21