Question

как решить пример (3 1/3+5 1/6)×2/5-2 3/4:(1 1/2-2/5) =

Answer 1

=(20/6+31/6)*2/5- 2 3/4:(15/10-2/5)=51/6*2/5-11/4:13/10=51/15-11/4*10/13=51/15-55/26=(765-825)/390=-140/390=-14/39