Помогите 56 2/3*14,4-13,4*50/67

Question

Помогите
56 2/3*14,4-13,4*50/67

Answer 1

56 2/3*14,4-13,4*50/67=170/3* 72/5-670/67=34/1*24/1-10=816-10=806

56 2/3=170/3
14,4=14 4/10=14 2/5=72/5