Найдите неизвестное число, обозначенное буквой 1) 1\2 + x = 5\6 2) y - 1\5 = 3\10 3) 5\6 - c = 1\3
171
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Ответы на вопрос:
¹/₂ + х = ⁵/₆ х = ⁵/₆ - ¹/₂ = ⁵/₆ - ⁽¹ˣ³⁾/₍₂ₓ₃₎ = ⁵/₆ - ³/₆ = ⁽⁵⁻³⁾/₆ = ²/₆ х = ¹/₃ =================== ¹/₂ + ¹/₃ = ⁵/₆ ³/₆ + ²/₆ = ⁵/₆ ⁵/₆= ⁵/₆ у - ¹/₅ = ³/₁₀ у= ³/₁₀ + ¹/₅ = ³/₁₀ + ²/₁₀ = ⁵/₁₀ у= ¹/₂ ========================== ¹/₂ - ¹/₅ = ³/₁₀ ⁵/₁₀ - ²/₁₀ = ³/₁₀ ³/₁₀ = ³/₁₀ ⁵/₆ - с = ¹/₃ с = ⁵/₆ - ¹/₃ = ⁵/₆ - ²/₆ = ³/₆ с = ¹/₂ ================== ⁵/₆ - ¹/₂ = ¹/₃ ⁵/₆ - ³/₆ = ¹/₃ ²/₆ = ¹/₃ ¹/₃ = ¹/₃
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