Question

помогите пожалуйста номера 503(д,е) 504(д,е)

Answer 1

503 д (1/2+1/3)×2=(3/6+2/6)×2=5/6×2=1 2/3 503 e (1/2-1/3)×3=(3/6-2/6)×3=1/6×3 =1/2 504 д (1/4+1/6)÷10=(3/12-2/12)÷10=7/12×1/10= =1/24 е (5/6-1/4)÷7=(10/12-3/12)÷7= =7/12×1/7=1/24