Question

Помогите решить
4целых5/13+(2целых8/13-1целач12/13)+3целых7/13

Answer 1

$4 frac{5}{13} +(2 frac{8}{13} -1 frac{12}{13})+3 frac{7}{13} = \ \ \ =4 frac{5}{13} +(1 frac{21}{13} -1 frac{12}{13})+3 frac{7}{13}= \ \ \ =4 frac{5}{13} + frac{9}{13} +3 frac{7}{13}= \ \ \ (4+3)+ frac{5+9+7}{13} =7 + frac{21}{13} =7+1 frac{8}{13} =8 frac{8}{13}$