#TradingPairs101 Trading pairs in crypto, like BTC/USDT, indicate which two cryptocurrencies (or crypto and fiat) can be exchanged on an exchange. The first currency (e.g., BTC) is the base, and the second (e.g., USDT) is the quote. The price tells you how much of the quote currency is needed to buy one unit of the base currency. They are fundamental for executing trades and understanding market value.