Question

(12 15/13 + у) - 9 9/13 = 7 7/13а : 12 = 11 5/12​

Answer 1

(12 15/13 + у) - 9 9/13 = 7 7/13

12 15/13 + у = 7 7/13 + 9 9/13

12 15/13 + у = 16 16/13

у = 16 16/13 - 12 15/13

у = 4 1/13

- - - - - - - - - - - - - - - - - - - - - - -

а : 12 = 11 5/12

а : 12 = 137/12

а = 137/12 · 12

а = 137

Answer 2

To solve the equation, let's break it down step by step:

Step 1: Convert mixed numbers to improper fractions. 12 15/13 can be written as (12 * 13 + 15)/13 = 159/13. 9 9/13 can be written as (9 * 13 + 9)/13 = 126/13. 7 7/13 can be written as (7 * 13 + 7)/13 = 98/13. 11 5/12 can be written as (11 * 12 + 5)/12 = 137/12.

Step 2: Simplify the equation. ((159/13 + у) - (126/13)) = (98/13) * (137/12)

Step 3: Perform the operations on both sides. (159/13 + у - 126/13) = (98/13) * (137/12) (33/13 + у) = (98/13) * (137/12)

Step 4: Simplify the right side of the equation. (33/13 + у) = (137 * 98)/(13 * 12) (33/13 + у) = 13426/156

Step 5: Subtract 33/13 from both sides to isolate у. (33/13 + у) - 33/13 = 13426/156 - 33/13 у = 13426/156 - 33/13

Step 6: Simplify and compute the right side. у = 13426/156 - 33/13 у = 433/39 - 99/39 у = (433 - 99)/39 у = 334/39

Therefore, the value of у is 334/39.