Question

Qual é maior, menor ou igual -2/3 ou -1/5?​

Answer 1

$\Large\boxed{\begin{array}{l}\begin{array}{c|l}\sf3,5&\sf3\\\sf1,5&\sf5\\\sf1,1\end{array}\\\sf m.m.c(3,5)=3\cdot5=15\\\sf-\dfrac{2}{3}=-\dfrac{10}{15}\\\sf-\dfrac{1}{5}=-\dfrac{3}{15}\\\sf-\dfrac{3}{15}>-\dfrac{10}{15}\implies-\dfrac{1}{5}>-\dfrac{2}{3}\end{array}}$