Arsenal have risen to third place on the Premier League table after their 2-0 victory over Newcastle at the Emirates Stadium on Monday.
Ramsey gave Arsenal the lead in the 30th minute with the first attempt on goal in the game as he whipped in a left-footed shot.
And in the 83rd minute, Lacazette made sure of the three points, finishing off Pierre-Emerick Aubameyang’s assist.
Nigerian international Alex Iwobi was on from the start before making way for Aubameyang in the 61st minute.
The win took Arsenal to third, their highest league position this season, on 63 points, leapfrogging top four rivals Tottenham Hotspur and Manchester United who are now fourth and fifth respectively.
They now have 10 home wins in a row in the Premier League – for the first time since the 1997/98 season.
Also, they join Manchester City as the only teams to have won all league games at home in 2019.