8.- Fracciones inversas

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Matemáticas 1º ESO

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8.- Fracciones inversas

  1. 1. SESO DEL IES LAS CUMBRES. GRAZALEMA MATEMÁTICAS 1º ESO8.- FRACCIONES INVERSAS Dos fracciones son inversas cuando su producto es igual a la unidad. 3 5 3⋅5 15 ⋅ = = =1⇒ inv 5 3 5⋅3 15 3 5 = 5 3  10 3 10⋅3 30 ⋅ = = =1⇒ inv 3 10 3⋅10 30 10 3 = 3 10   1 7⋅1 7 1 7⋅ = = =1 ⇒inv  7  = 7 7 7 7 1 9 ⋅9= 1⋅9 9 = =1 ⇒inv 9 9 1 9  =9Ejercicio propuesto 22 → Ejercicio resuelto 22

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