This nuance comes from the guitar, but the effect is difficult to achieve on a ukulele, mainly because a ukulele
only has 4 strings, but also because string gauges don't increase from the thinnest to the largest like on a guitar.
Sometimes it's not even possible to play a slashed chord on a uke, or it makes no sense to do so (a D/F# is made using the exact same notes that form a D).
Below you will find all the existing slashed chords playable on the ukulele. Our list is quite big (we have 800 slashed chords in db), but it's really not a lot compared to the guitar
(65% are missing...).
If the chord you're looking for isn't listed on this site, you simply can't play it on a uke, or it would be really complicated to find a similar chord to achieve the
correct sound.
When this happens, you have two options:
It really depends on you and what sound you'd like to achieve.