Two signs together

No. Astrology sites give percentages that nobody can check. This page says how the two signs' elements tend to sit together and gives one thing to do about it. Whether two people fit is up to the two people.

Each sign belongs to fire, earth, air or water. Fire signs are Aries, Leo and Sagittarius; earth is Taurus, Virgo and Capricorn; air is Gemini, Libra and Aquarius; water is Cancer, Scorpio and Pisces. Fire and air feed each other, earth and water hold each other, and the cross pairs make steam, mud, dust and wind.

Use whichever you like. Western astrology usually reads the Sun sign for this; Vedic astrology reads the Moon sign (rashi). The Moon sign calculator gives yours.