Common (COMMON)を使ってPolkadot (DOT)を購入する方法
To buy Polkadot using Common, first, find a cryptocurrency exchange that supports the DOT/COMMON trading pair. Create an account, verify your identity, and deposit your COMMON into your exchange wallet. Locate the DOT/COMMON pair on the trading platform and place an order to exchange your Common for Polkadot. If the DOT/COMMON pair is unavailable, you can first exchange Common for a stablecoin like Tether (USDT) or a fiat currency, then trade that for Polkadot. Be mindful of potential exchange fees, which vary by platform and can affect the total cost of your transaction.
Polkadot (DOT) を Common (COMMON) に売却する方法
To sell Polkadot for Common, first, find a cryptocurrency exchange that supports the DOT/COMMON trading pair. Create an account, verify your identity, and deposit your DOT into your exchange wallet. Locate the DOT/COMMON pair on the trading platform and place a sell order to exchange your Polkadot for Common. If the DOT/COMMON pair is unavailable, you can first sell Polkadot for a stablecoin like Tether (USDT) or a fiat currency, then trade that for Common. Be mindful of potential exchange fees, which vary by platform and can affect the total amount you receive.

