Question

(у-2челых5пять6шыстых)+4челых3три5пятых=5челых2две3третиз

Answer 1

$(y-2 \frac{5}{6} )+4 \frac{3}{5} =5 \frac{2}{3} \\ y-2 \frac{5}{6} = 5 \frac{2}{3} - 4 \frac{3}{5}\\ y-2 \frac{5}{6} = 5 \frac{10}{15} - 4 \frac{9}{15}\\ y-2 \frac{5}{6} = 1 \frac{1}{15} \\ y = 1 \frac{1}{15} + 2 \frac{5}{6}\\ y = 1 \frac{2}{30} + 2 \frac{25}{30}\\ y = 3 \frac{27}{30} \\ y = 3 \frac{9}{10}$