65*(4 7/13m-2 3/5m)=9 надо пожалуйста

Question

65*(4 7/13m-2 3/5m)=9 надо пожалуйста

Answer 1

65 • ( 4 7/13m - 2 3/5m ) = 9
4 7/13 - 2 3/5 = 4 35/65 - 2 39/65 = 3 100/65 - 2 39/65 = 1 61/65
65 • ( 1 61/65m ) = 9
1 61/65m = 9/65
126/65m = 9/65
m = 9/65 : 126/65
m = 9/126
m = 1/14