Выбери верные ответы

Известно, что \(\boldsymbol{a\lt b}\) . Сравни выражения.

1. \(-12,5a\) [ \(\lt\) | \(\gt\) ] \(-12,5b\) .
2. \(0,01a\) [ \(\lt\) | \(\gt\) ] \(0,01b\) .
3. \(\dfrac{a}{8}\) [ \(\lt\) | \(\gt\) ] \(\dfrac {b}{8}\) .
4. \(\dfrac{8}{a}\) [ \(\lt\) | \(\gt\) ] \(\dfrac{8}{b}\) .