Resposta :
1. {12}{16} = {3}{4}
2.{32}{40} = {4}{5}
3.{12}{36} = {1}{3}
4.{63}{99} = {7}{11}
5.15}{45} = {1}{3}
6. {21}{49} = {3}{7}
7. {12}{72} = {1}{6}
8.{200}{300} = {2}{3}
1. {12}{16} = {3}{4}
2.{32}{40} = {4}{5}
3.{12}{36} = {1}{3}
4.{63}{99} = {7}{11}
5.15}{45} = {1}{3}
6. {21}{49} = {3}{7}
7. {12}{72} = {1}{6}
8.{200}{300} = {2}{3}