AYUDA PORFA RAPIDO es mi taller y mañan es el examen ayuda ñorfavof amplifiquen?

Respuesta : Explicación paso a paso : <img src="https://tex.z-dn.net/?f=%5Ctextrm%7BAmplificar%20una%20fracci%5C%27on%20consiste%20en%20multiplicar%7D%5C%5C%5Ctextrm%7Bpor%20un%20mismo%20n%5C%27umero%20el%20numerador%20y%20el%20denominador%7D%5C%5C%5Ctextrm%7Bpara%20obtener%20una%20fracci%5C%27on%20equivalente%7D%5C%5C%5Ctextrm%7Bpor%20lo%20tanto%3A%7D%5C%5C%5C%5Ca%29.-%5Cfrac%7B1%7D%7B5%7D%5C%2C%5Ctextrm%7Ben%205%7D%3D%5Cfrac%7B1%7D%7B5%7D%5Ctimes%5Cfrac%7B5%7D%7B5%7D%3D%5Cfrac%7B1%5Ctimes%205%7D%7B5%5Ctimes%205%7D%3D%5C%5C%3D%5Cfrac%7B5%7D%7B25%7D%5C%5C%5C%5Cb%29.-%5Cfrac%7B-2%7D%7B7%7D%5C%2C%5Ctextrm%7Ben%202%7D%3D%5Cfrac%7B-2%5Ctimes%202%7D%7B7%5Ctimes%202%7D%3D-%5Cfrac%7B-4%7D%7B14%7D%5C%5C%5C%5Cc%29.-%5Cfrac%7B3%7D%7B4%7D%5C%2C%5Ctextrm%7Ben%203%7D%3D%5Cfrac%7B3%5Ctimes%203%7D%7B4%5Ctimes%203%7D%3D%5Cfrac%7B9%7D%7B12%7D%5C%5C%5C%5Cd%29.-%5Cfrac%7B2%7D%7B3%7D%5C%2C%5Ctextrm%7Ben%204%7D%3D%5Cfrac%7B2%5Ctimes%204%7D%7B3%5Ctimes%204%7D%3D%5Cfrac%7B8%7D%7B12%7D%5C%5C%5C%5Ce%29.-%5Cfrac%7B-5%7D%7B6%7D%5C%2C%5Ctextrm%7Ben%2012%7D%3D%5Cfrac%7B-5%5Ctimes%2012%7D%7B6%5Ctimes%2012%7D%3D%5Cfrac%7B-60%7D%7B72%7D" />.