15/41+x/41+6/41=39/41

Question

15/41+x/41+6/41=39/41

Answer 1

15/41+х/41+6/41=39/41
х=39-6-15
х=18

Answer 2

15/41+х/41+6/41=39/41
х/41+21/41=39/41
х/41=39/41-21/41
х/41=18/41 
х=18