Question

(2,2+(-13))+(-3 115)=
ПОМОГИТЕ ПОЖАЛУЙСТА!!!!!!!!!!!!!!!!

Answer 1

(2,2+(-1/3))+(-3 1/15)=(2 1/5-1/3)-3 1/5=(2 3/15-5/15)-3 1/5=1 13/15-3 1/5=
=1 13/15-3 3/15=-20/15=-1 5/15=-1 1/3

Answer 2

(2,2+(-¹/₃))+(-3¹/₁₅) = - 1¹/₅
2,2+(-¹/₃) = ²²/₁₀ - ¹/₃ = ²²ˣ³/₃₀ - ¹⁰/₃₀ = ⁶⁶⁻¹⁰/₃₀ = ⁵⁶/₃₀ = ²⁸/₁₅
²⁸/₁₅ - 3¹/₁₅ = ²⁸/₁₅ - ⁴⁶/₁₅ = ²⁸⁻⁴⁶/₁₅ = - ¹⁸/₁₅ = - 1³/₁₅ = - 1¹/₅