Pregunta: Dados los siguientes grupos de fracciones, decir de cada fracción si es irreductible o no:1) ${9}/{2}$  y ${4}/{7}$  y ${2}/{5}$  
2) ${14}/{12}$  y ${28}/{7}$  y ${5}/{9}$  
3) ${10}/{16}$  y ${8}/{16}$  y ${2}/{7}$  
456c20726573756c7461646f206465206c612070726567756e74612031292065733a20534920657320667261636369c3b36e20697272656475637469626c653c62723e266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b534920657320667261636369c3b36e20697272656475637469626c653c62723e266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b534920657320667261636369c3b36e20697272656475637469626c653c62723e456c20726573756c7461646f206465206c612070726567756e74612032292065733a204e4f20657320667261636369c3b36e20697272656475637469626c653c62723e266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b4e4f20657320667261636369c3b36e20697272656475637469626c653c62723e266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b534920657320667261636369c3b36e20697272656475637469626c653c62723e456c20726573756c7461646f206465206c612070726567756e74612033292065733a204e4f20657320667261636369c3b36e20697272656475637469626c653c62723e266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b4e4f20657320667261636369c3b36e20697272656475637469626c653c62723e266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b266e6273703b534920657320667261636369c3b36e20697272656475637469626c653c62723e