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Cardi B 's giving her daughter, Kulture , a crash course in the height of fashion ... twinning with her at a New York Fashion Week event Friday night.

The rapper took her 7-year-old to the Alexander Wang show during the biggest week in NY's fashion scene ... and, the two wore fur ensembles -- grinning brightly while posing together. Getty

Cardi went with the whole fur 'fit here ... while Kulture threw the fur on just the skirt, pairing it with a plain black long-sleeve. Getty

The two watched all the action at the event with keen interest ... especially Kulture -- peering ahead through her sunglasses like Anna Wintour , all while at the same table as Martha Stewart !

Kulture is the youngest child of Cardi and her ex-husband Offse

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