Question

Efetue 9/5-3/3-7/15 e simplefique se for possivel

Answer 1

Explicação passo-a-passo:

${9\over5}-{3\over3}-{7\over15}=\\ \\ mmc(5,3,15)=15\\ \\ {27-15-7\over15}=\\ \\ {27-22\over15}={5\over15} \\ \\ simplificando\\ \\ {5:5\over15:5}=\fbox{ {1\over3} }$