Question

помогите пожалуйста,заранее спасибо​

Answer 1

Ответ:

(-5/6) ÷ (-5/12) = 2

-3 3/4 ÷ 1 1/2 = -2 1/2

-4 2/3 ÷ 2/9 = -21

(-6 1/4) ÷ (-5/8) = 10

Пошаговое объяснение:

(-5/6) ÷ (-5/12) = 5/6 ÷ 5/12 = 5/6 × 12/5 = (5×12)/(6×5) = 12/6 = 2

-3 3/4 ÷ 1 1/2 = -15/4 ÷ 3/2 = -15/4 × 2/3 = -(15×2)/(4×3) = -(3×5×2)/(2×2×3) = - 5/2 = -2 1/2

-4 2/3 ÷ 2/9 = -14/3 ÷ 2/9 = -14/3 × 9/2 = -(14×9)/(3×2) = -(7×2×3×3)/(3×2) = -7×3 = -21

(-6 1/4) ÷ (-5/8) = 6 1/4 ÷ 5/8 = 25/4 × 8/5 = (25 × 8)/(4×5) = (5×5×4×2)/(4×5) = 5×2 = 10