Question

Решите уравнение (12 5/15+y)-6 6/13=7 8/13​

Answer 1

$(12\frac{5}{15}+y )-6\frac{6}{13} = 7\frac{8}{13}\\12\frac{5}{15} + y = 7\frac{8}{13} + 6\frac{6}{13}\\12\frac{5}{15} + y = 13\frac{14}{13}\\y = 14\frac{1}{13} - 12\frac{5}{15}\\y = 14\frac{15}{195} - 12\frac{65}{195} \\y = 13\frac{210}{195}- 12\frac{65}{195}\\y = 1\frac{145}{195}\\y = 1\frac{29}{39}$