Pregunta: Dados los siguientes grupos de fracciones, decir de cada fracción si es irreductible o no:1) ${8}/{5}$  y ${6}/{4}$  y ${6}/{5}$  
2) ${8}/{2}$  y ${5}/{1}$  y ${6}/{1}$  
456c20726573756c7461646f206465206c612070726567756e74612031292065733a20534920657320667261636369c3b36e20697272656475637469626c653c62723e266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b4e4f20657320667261636369c3b36e20697272656475637469626c653c62723e266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b534920657320667261636369c3b36e20697272656475637469626c653c62723e456c20726573756c7461646f206465206c612070726567756e74612032292065733a204e4f20657320667261636369c3b36e20697272656475637469626c653c62723e266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b534920657320667261636369c3b36e20697272656475637469626c653c62723e266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b534920657320667261636369c3b36e20697272656475637469626c653c62723e