Question

qual e a fraçao de 2/7 + 2/8​

Answer 1

Resposta:

${2\over7}+{2\over8}=\\ \\ mmc(7,8)=56\\ \\ {16+14\over56}={30\over56}\\ \\ simplificando\\ \\ {30:2\over56:2}={15\over28}$