Решите задание 3 вычислите

Решите задачу:

$(5 \frac{7}{11} -3 \frac{5}{6} ):1 \frac{53}{66} =(5 \frac{7*6}{11*6} -3 \frac{5*11}{6*11} ):\frac{66*1+53}{66} = \\ \\ \\ =(5 \frac{42}{66} -3 \frac{55}{66} ): \frac{119}{66} =(4 \frac{42+66}{66} -3 \frac{55}{66} ): \frac{119}{66} = \\ \\ \\ =1 \frac{53}{66} * \frac{66}{119} = \frac{119:119}{66:66} * \frac{66:66}{119:119} = \frac{1}{1} * \frac{1}{1} =1*1=1$