Question

Помогите решить пожалуйста

Answer 1

(-3,8+2(1/3))×(-1(7/8))+4(1/6)÷(-1(2/3))=-5(101/120)~-5,842

1) 2(1/3)-3,8=(7/3)-(38/10)=(70-38×3)/30=(70-114)/30=-44/30

2) (-44/30)×(-1(7/8))=(-44/30)×(-15/8)=(-44×4-15×15)/120=(-176-225)/120=-401/120

3) 4(1/6)÷(-1(2/3))=25/6÷(-(5/3))=-(25×3)/(5×6)=-(5×5×3)/(5×3×2)=-5/2

4) (-401/120)+(-5/2)=(-401+(-(5×60)))/120=(-401-300)/120=-701/120=-5(101/120)=-5,84166667~-5,842.