Premiere Pro - 2 clips i want to merge and one of them doesn't match the size of the other one

[karamfilova]

Hi guys,

I am editing bunch of clips made from different smartphones and one of them is not fitting the screen in Program where is the other one. How can i fix that? I am attaching a photo to see how it looks like. I am a beginner in Premiere Pro so I will appreciate simple explanation. Thanks!

You can see on the right side the V2 which is on the top of V1 is smaller. I want to make it the same size of V1

[Ann Bens]

Hit F1 within Premiere and type in Scale.